recalculate the percent dissociation of 0.19 m hn3 in the presence of 0.19 m hcl.

Answers

Answer 1

The percent dissociation of 0.19 M HNO[tex]_3[/tex] in the presence of 0.19 M HCl is approximately 100.2%.

To calculate the percent dissociation of 0.19 M HNO[tex]_3[/tex]  in the presence of 0.19 M HCl, we need to consider the common ion effect, which will shift the equilibrium to the left and decrease the concentration of [tex]H_3O^+[/tex] at equilibrium.

Let's start by calculating the concentration of [tex]H_3O^+[/tex] at equilibrium using the equilibrium constant expression and the initial concentration of HNO[tex]_3[/tex]:

Ka = [[tex]H_3O^+[/tex]][[tex]NO_3^-[/tex]]/[HNO[tex]_3[/tex] ]

At equilibrium, the concentration of [tex]NO_3^-[/tex] is equal to the concentration of HNO3 that has dissociated, which we can assume to be x. Therefore:

Ka = [[tex]H_3O^+[/tex]][x]/[0.19 - x]

We also know that HCl completely dissociates in water to give [tex]H_3O^+[/tex] and [tex]Cl^-[/tex]. Therefore, the concentration of [tex]H_3O^+[/tex] contributed by HCl is equal to 0.19 M.

The total concentration of [tex]H_3O^+[/tex] at equilibrium is therefore:

[[tex]H_3O^+[/tex]] = [[tex]H_3O^+[/tex]] from HNO[tex]_3[/tex]  dissociation + [[tex]H_3O^+[/tex]] from HCl dissociation

[[tex]H_3O^+[/tex]] = x + 0.19

Substituting this into the equilibrium constant expression and solving for x:

Ka = [[tex]H_3O^+[/tex]][x]/[0.19 - x]

1.0 x [tex]10^{-7}[/tex] = (x + 0.19)x/(0.19 - x)

Using the quadratic formula: x = 4.08 x [tex]10^{-4}[/tex] M

Therefore, the concentration of [tex]H_3O^+[/tex] at equilibrium is:

[[tex]H_3O^+[/tex]] = x + 0.19 = 0.1904 M

The percent dissociation of HNO[tex]_3[/tex]  in the presence of 0.19 M HCl is:

% dissociation = ([[tex]H_3O^+[/tex]] at equilibrium / initial concentration of HNO[tex]_3[/tex] ) * 100%

% dissociation = (0.1904 M / 0.19 M) * 100%

% dissociation = 100.2%

Therefore the percent dissociation of 0.19 M HNO[tex]_3[/tex] in the presence of 0.19 M HCl is 100.2%.

To learn more about equilibrium constant:

https://brainly.com/question/31321186

#SPJ11


Related Questions

Which is not considered part of the solar system?

Jovian planets

galaxies

terrestrial planets

sun

Answers

Galaxies is not the part of the Solar system.

Hence, Option B is correct answer.

What is Solar System ?

Solar System is made up of all the planets that revolve around our Sun. Solar System contains eight planets. These planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Now lets check all options one by one

Option (A): Jovian Planets

Outer planets are called Jovian planets. These planets are Jupiter, Saturn, Uranus and Neptune. So Jovian Planets are part of the Solar System.

Hence, Option A is incorrect.

Option (B): Galaxies

Galaxy has a black hole at its center. It is a huge collection of dust, billions of star and gas. So galaxies are not a part of the Solar system.

Hence, Option B is incorrect.

Option (C): Terrestrial Planets

Innermost planets in solar system are Terrestrial planets. These planets are Mercury, Venus, Earth and Mars. So Terrestrial planets are part of the Solar system.

Hence, Option C is incorrect.

Option (D): Sun

The Sun is the part of the Solar system as it is the only star in our Solar system. Sun is the center of our Solar system.

Hence, Option D is incorrect.

Thus from the above conclusion we can say that Galaxies is not the part of the Solar system.

Hence, Option B is correct answer.

Learn more about the Solar System here: https://brainly.com/question/13174833

#SPJ1

Nylon, a polyamide, is produced from hexanediamine and a substance, x. This substance, x, is most probably:____.
a. an amine.
b. a carboxylic acid.
c. a nitrile.
d. an alcohol.

Answers

Nylon, a polyamide, is produced from hexanedi-amine and a substance, x. This substance, x, is most probably a carboxylic acid.

A polymer containing repeating units connected by amide bonds being called a polyamide. Both naturally occurring and synthetic polyamides are found. Proteins found in materials like wool and silk were examples of naturally produced polyamides.

The term "nylon" refers to a family of polymeric materials made up of polyamides. Nylon would be a silk-like thermoplastic that may be formed into threads, films, or other shapes. It is often manufactured from petroleum.

Therefore, Nylon, a polyamide, is produced from hexanedi-amine and a substance, x. This substance, x, is most probably a carboxylic acid.

To know more about polyamide

https://brainly.com/question/10266375

#SPJ4

A student weighs out a 7.24 g sample of , transfers it to a 300. mL volumetric flask, adds enough water to dissolve it and then adds water to the 300. mL tick mark. What is the molarity of zinc chloride in the resulting solutio

Answers

The molarity of the zinc chloride solution will be 0.089 M

Molarity

Mole of 7.24 g ZnCl2 = 7.24/136.286 = 0.5312 mol

Total volume of water used in preparing the solution = 300 + 300 = 600 mL

Molarity of the solution = mole/volume = 0.5312/0.6 = 0.089 M

The molarity of the zinc chloride solution is, therefore, 0.089 M

More on molarity can be found here: https://brainly.com/question/8732513

#SPJ1

pls help!! I need the answer to this ASAP

Answers

Answer:

I think the element is carbon and the atomic mass is 12.011

Once ____________ bonds form between every fourth amino acid in a polypeptide chain, the chain begins to twist into the ____________ structure known as a(n) ____________ .

Answers

Once hydrogen bonds form between every fourth amino acid in a polypeptide chain, the chain begins to twist into the secondary structure known as a(n) alpha helix.

What is Amino Acid ?

Amino acids are organic compound. Amino acids contains amine and carboxyl functional group. Amino acids is the building block of life these are the molecules that combine to form proteins.

What is Polypeptide Chain ?

A unique sequence of amino acids joined by peptide bonds is called polypeptide.

Thus from the above conclusion we can say that Once hydrogen bonds form between every fourth amino acid in a polypeptide chain, the chain begins to twist into the secondary structure known as a(n) alpha helix.

Learn more about the Amino acids here: https://brainly.com/question/2526971

#SPJ4

What kind of defect or dislocation does a carbon in a ti metal lattice represent?

Answers

electrical conductivity is the kind of defect or dislocation a carbon in a ti metal lattice represents.

The electrical conductivity of a metal is the result of the movement of charged particles. Atoms of metal elements are electrons in the outer shell of the atom and are characterized by the presence of valence electrons that can move freely around

Staircase dislocations and Lomer-Cottrell dislocations are examples of fixed dislocations. The two main types of movable dislocations are blade dislocations and spiral dislocations. The blade dislocations can be visualized as being caused by the termination of the atomic plane at the center of the crystal.

Learn more about electrical conductivity here:https://brainly.com/question/18384031

#SPJ4

Identify the products of the reaction between 2KOH and H₂SO4.
O KSO and H2₂O
OK2SO4 and H₂O
O H₂O and K₂SO4
O KH2 and SO4

Answers

Answer:

C.) H₂O and K₂SO₄

Explanation:

This appears to be a double-displacement reaction. In these reactions, the cation of one substance is swapped with the cation of another.

So, K⁺ from KOH is swapped with the H⁺ from H₂SO₄. The new compounds should have an overall charge of 0. Therefore, it may be necessary to modify the amount of each ion (not just be 1:1).

K₂SO₄
-----> K⁺ and SO₄²⁻

-----> + 1 + 1 + (-2) = 0

H₂O

-----> H⁺ and OH⁻

-----> + 1 + (-1) = 0

Juan measured the temperature of salt water. he then added 273 temperature units to the measured temperature value. which temperature conversion is juan most likely doing?

Answers

Celcius to Kelvin

Temperature is defined as the degree or intensity of heat present in a substance It is measured using a thermometer and other equipment. The temperature can be measured in Kelvin, Celsius, and Fahrenheit.

What is Temperature ?

Temperature is a physical quantity, thermometers. The units in which can be measured by Celcius, and Fahrenheit. Temperature is measured can be Kelvin,

These units are interconvertible and have certain conversion factors.

For example, the conversion factor for Celcius to Kelvin is:

0° Celcius = 273 Kelvin

In the given situation, Juan is using the conversion factor of Celcius to Kelvin.

Celsius to Kelvin temperature conversion juan most likely to do

Learn more about Temperature here:

https://brainly.com/question/25677592

#SPJ4

An iron bar at 200°c is placed in thermal contact with an identical iron bar at 120°c in an isolated system. after 30 minutes, both iron bars are at 160°c. if the iron bars were placed in thermal contact in an open system instead of an isolated system, how would the results be different? assume that the room temperature is 25°c.

Answers

Answer: The correct answers are A and B.
Explanation:
Conduction: In the conduction, the heat is
transferred from the hotter body to the colder
body until the temperature on both bodies are
equal.
In thermal equilibrium, there is no heat
transfer as the heat is transferred till the
temperature on the bodies are not same.
In the given problem, an iron bar at 200°C is
placed in thermal contact with an identical iron
bar at 120°C in an isolated system. After 30
minutes, the thermal equilibrium is attained.
Then, the temperature on both iron bars are
equal.Both iron bars are at 160°C in an isolated
system.
But in an open system, the temperatures of the
iron bars after 30 minutes would be less than
160°C. There will be heat lost to the
surrounding. The room temperature is 25°C.
There will be exchange of the heat occur
between the iron bars and the surrounding. But
It would take more than 30 minutes for both iron
bars to reach 160°C because heat would be
transferred less efficiently.
Therefore, the correct options are (A) and (B).

15. What is the mass of mercury in a 250 g fish if the ppm was measured to be 0.23?

Answers

Answer: The mass of mercury will be 57.5 micrograms.

The given question deals with Analytical Chemistry where Concentration is asked here.

Concentration: Generally concentration is defined as amount of the substance per unit volume. Concentration is also expressed in parts per million(ppm) when it is a small quantity as in case of mercury content in fish.

Explanation:   Given mass of the fish = 250 g,

                         ppm = 0.23

               Now mass of mercury = 0.23 ppm × 250 g                                                        

                                                     = 0.23/1,000,000 × 250g

                                                    =0.23×250/1,000,000 g

                                                    = 0.0000575 g

                                                    =57.5 micrograms

Reference Link:https://brainly.com/question/12003074

#SPJ2

                                                     

                                                     

                       

_____ was the first expert system developed to determine the chemical structure of molecules.

Answers

Answer:

Dendral was the first expert system developed to determine the chemical structure of molecules.

In an ionic lattice:
A. atoms are packed together in a regular cubic arrangement
B. atoms are bonded with 2 single bonds and one double bond.
C. atoms are structured in a vast network of atoms.
D. atoms are bonded to four others in a tetrahedral shape.

Answers

In an ionic lattice, atoms are packed together in a regular cubic arrangement; option A.

What is an ionic compound?

An ionic compound is a compound which is composed of oppositely-charged ions which are held together by strong electrostatic forces of attraction.

The properties of ionic compound include:

They occur in regular crystal latticesThey have high melting and boiling pointsThey are electrolytes.

Ionic lattices have regular structural patterns consisting of atoms arranged in a regular repeating pattern, usually a cube. There are several cubic structures in ionic lattices.

In conclusion, ionic lattices are regular repeating arrangement of atoms. Ionic lattices are usually arranged in the form of cubic crystal.

Learn  more about ionic lattice at: https://brainly.com/question/25682087

#SPJ1

The table shows the concentration of a reactant in the reaction mixture over a period of time.
Reactant Concentration
Time Concentration
Os 1.8 M
210 s 1.2 M
450 S 0.8 M
580 S 0.6 M
720 s 0.4 M
What is the average rate of the reaction over the first 450 seconds? (3 points)
Ob
Oc
Od
1.7 x 10-3
1.9 x 10-3
2.0 x 10-3
2.2 x 10-3

Answers

The average rate of the reaction over the first 450 seconds -2.2×10⁻³ M/s

What is speed?

Speed is defined as the rate of change of the distance moved with time. Mathematically, it can be expressed as:

Speed = distance / time

With the above idea, we can obtain the rate of the reaction as illustrated below:

How to determine the rate of the reaction over the first 45osChange in concentration = 0.8 - 1.8 = -1 MTime = 450 sSpeed = ?

Rate = Change in concentration / time

Rate = -1 / 450

Rate = -2.2×10⁻³ M/s

Learn more about speed:

https://brainly.com/question/680492

#SPJ1

D is correct for number 2. i just finished

explanation; i got it right

Elements on the periodic table are arranged in order by their

Answers

Answer:

in order of increasing atomic number, or the number of protons in an atom's nucleus, which generally coincides with increasing atomic mass

livesciencecom

is generally regarded as one of the most accomplished and influential
scientists in history.

Answers

answer - Albert Einstein

explanation -

Albert Einstein is arguably the most influential scientist of the 20th century. His … general theory of relativity changed our understanding of space and time, becoming one of the two pillars of modern physics – the other being quantum mechanics.

Explain why the production of a gas in this experiment is or is not different from the formation of water vapor in the heating curve experiment.

Answers

The production of a gas is different because unlike the heating curve, there was no heat applied to this experiment, and the experiment was a chemical reaction.

What is a Heating curve?

This shows the relationship between the temperature of the heating system and the air temperature in the outer environment.

The chemical reaction emitted heat as against the other which involved heat application which is why water formation in this curve was different.

Read more about Heating curve here https://brainly.com/question/14094062

#SPJ1

The function of the heat exchanger in a nuclear reactor is to...
Select one:
a. prevent the leakage of radiation into the environment.
b. convert water into steam, which turns a turbine.
c. cool the reactor water.
d. absorb neutrons to slow down the chain reaction.

Answers

Answer:

cool the tractor water system

A hydrogen bond can occur between:

A. Two hydrogen atoms on different molecules.
B. Two oxygen atom surrounded by hydrogens.
C. The two hydrogen atoms on a water molecule.
D. A hydrogen from one molecule and an oxygen from another molecule.

Answers

The combination of a hydrogen atom in a molecule and the oxygen atom in another molecule leads to hydrogen bonding. Option D

How does hydrogen bond occur?

For hydrogen bond to occur, hydrogen must be bonded to a highly electronegative atoms in a direct covalent linkage. This accounts for the high boiling point of water.

Thus we can say that a hydrogen bond occurred when a hydrogen from one molecule and an oxygen from another molecule. Option D

Learn more about hydrogen bond:https://brainly.com/question/10904296?

#SPJ1

An equimolar mixture of two optical isomers is called a ________. An equimolar mixture of two optical isomers is called a ________. enantiomer achiral diastereomer structural isomer racemic mixture

Answers

Two optical isomers can form:

An equimolar mixture of two optical isomers is called a racemic mixture.

What is a Racemic mixture?

An equimolar mixture of two enantiomers that is optically inactive is known as a racemic mixture (or racemate) (i.e. does not rotate plane-polarized light).

The racemic mixture can be created by:

Combining enantiomers in equal amounts, or (more frequently) Reactions that create one or more new chiral centers without the influence of chirality (i.e. chiral reagent, catalyst, etc.)

The light that is plane-polarized does not spin in an optically inactive mixture.

Since each enantiomer rotates plane-polarized light to an equal and opposite extent, an equimolar mixture of two enantiomers will typically result in a racemic mixture. There won't be any net rotation if they are both present in equal proportions.

Learn more about racemic mixture here,

https://brainly.com/question/27835707

#SPJ4

In the combustion of propane: __ C3H8 __ O2 --> __ CO2 __ H2O When the equation is balanced using the smallest whole numbers, the coefficient of O2 will be:

Answers

Answer:

1 C3H8 + 5 O2 --> 3 CO2 + 4 H2O

Explanation:

USE PENCIL!  Balancing equations typically requires some initial trial and error.  Making changes is common.

_ C3H8 __ O2 --> __ CO2 __ H2O

We know we can only have whole molecules, so all number coefficients must be, eventually, whole numbers.  It is OK to start with a fraction, but the final must be a shole number.  Pick the most complex molecule (either product or reactant) and assign it a coefficient of 1.

1 C3H8 __ O2 --> __ CO2 __ H2O

Now find places for each of the atoms in C3H8 on the product side.  3 carbons means we need 3CO2 molecules, so add a coeffient of 3,

1 C3H8 __ O2 --> 3 CO2 __ H2O

3 CO2 means we need 6 oxygens, so add a coefficient of 3 for the O2:

1 C3H8 + 3 O2 --> 3 CO2 __ H2O

Now find a home for the 8 hydrogens that come from the 1 C3H8.  Add 4 to the H2O product:

1 C3H8 + 3 O2 --> 3 CO2 + 4 H2O

This last step added 4 more O to the product side, so we need to adjust the reactant source of O:

1 C3H8 + 5 O2 --> 3 CO2 + 4 H2O

Double check the result:

Element   Reactant  Product

 C                   3              3

 H                   8              8

 O                  10             10(6+4)

Everything checks.

[Note that one might use a fraction such as 1/2 or 1/3 just to make the balance work.  But fractions must be converted to whole numbers for the final equation.  For 1/2, multiply all coefficients by 2.  By 3 for 1/3, etc.]

a major textile dye manufacutrer developed a new yellow dye. the dye has a percent composition of 75.95%C, 17.72%n and 6.33%H by mass with a molar mass of about 240g/mol. determine the molecular formula of the dye

Answers

The molecular formula of dye:

A major textile dye manufacturer developed a new yellow dye with a molecular formula [tex]C_{15}N_{3}H_{15}[/tex].

Given:

Percentage composition:

C = 75.95%

N = 17.72%

H = 6.33%

Molar mass = 240 g

To find: molecular formula of dye

Calculation:

Let's assume the mass of the compound is 100 gm.

So,  Mass of C = 75.95 gm

Mass of N = 17.72 gm

Mass of H = 6.33 gm

The number of moles = given mass/mass

Therefore, the number of moles of C = 75.95/12 = 6.33

The number of moles of N = 17.72/14 = 1.27

Number of moles of H =6.33/1 = 6.33

Simplest ratio:

C = 6.33/1.27 = 4.98 =5

N = 1.27/1.27 = 1

H = 6.33/1.27 = 4.98 =5

Therefore, the empirical formula is [tex]C_{5}NH_{5}[/tex]

The mass of empirical formula = 12 x 5 + 14 + 1 x 5 = 79 gm

Number of moles= molar mass/ empirical formula

n = 240/79 = 3.04 =3

Therefore, molecular formula = empirical formula x n

Hence, molecular formula = [tex]C_{15}N_{3}H_{15}[/tex]

Learn more about molecular formulas here,

https://brainly.com/question/24083714

#SPJ4

Energy levels of electrons (n) indicates the distance of the energy level from the _______ values of n are positive integers n=1 is closest to the nucleus, and________ in energy

Answers

Energy levels of electrons (n) indicates the distance of the energy level from the nucleus values of n are positive integers n=1 is closest to the nucleus, and lower in energy

Any system which is in bounded state is consider to have negative potential energy and negative total energy.

The energy of the electrons rotating in the energy level is given as,

[tex]E_{n} = - 13.6/n^{2} eV[/tex]

[tex]E_{n}[/tex] is energy of the n level.n is the principle quantum number.

So, on increasing value principle quantum number (n) the energy of the level is become higher.

The first energy level can contain  to 2 electrons , the second energy levels can contain 8 electrons and third energy levels can contain  18 electrons and fourth energy levels can contain  32 electrons

learn about energy levels

https://brainly.com/question/17396431

#SPJ4

What is one off the differences in how the leading and lagging strands of dna molecules synthesize?

Answers

The basis of the difference between the leading and lagging strand is that DNA polymerase can join new nucleotides only to the 3' end of the growing strand.

The leading strand is the new DNA strand that continually extends from 5' to 3'. On the lagging strand, Okazaki fragments develop and are linked by DNA ligase activity. DNA polymerase can only attach new nucleotides to the 3' end of the developing strand, which forms the basis of the distinction between the leading and lagging strands.

Therefore, "DNA polymerase can link additional nucleotides exclusively to the 3' end of the developing strand" is the appropriate response.

Learn more about DNA polymerase here:

https://brainly.com/question/13326597

#SPJ1

Two liquids are in a graduated cylinder - liquid a has a density of 1.004 g/cm3 and liquid b has a density of 0.6223 g/cm3 . assuming that they do not mix, which liquid is on top and which liquid is on bottom? where would you expect to find the plastic cube from question #2 if it is dropped into the graduated cylinder with these two liquids?

Answers

Liquid B is expected to be at the top while liquid A is found at the bottom.

What is density?

The term density has to do with the ratio of the mass of a substance to its volume. Now given that the density of a substance actually shows how much heavy the substance is, it is not difficult to understand that a material that has a low density will flat at the top of a material that has a lower density.

Here we are told that the two liquids do not mix. If they do not mix then it follows that they must have formed a two phase system in which one is at the top of the other. The one that is at the top must have the lower density.

Thus, liquid B is expected to be at the top while liquid A is found at the bottom. From the density of the plastic cue, the cube will be at the top.

Learn more about density:https://brainly.com/question/16977591

#SPJ1

Complete the charge balance equation for an aqueous solution of h2co3 that ionizes to hco−3 and co2−3.

Answers

The relevant coefficients for each species on the right side of the equation in order to balance the charges.

We can add a coefficient of 2 to HCO³⁻ and a coefficient of 1 to CO3- because the charges must cancel out: H₂CO₃ ⇌ 2HCO³⁻ + CO₃²⁻-

The charges balance is now: No initial charge

Charge total: 2(-1) + (-2) = -4

Due to the balance of the charges, the charge balance equation is as follows: H₂CO₃ ⇌ 2HCO³⁻- + CO₃²⁻.

,Thus, The charge balance equation is as follows: H₂CO₃ ⇌ 2HCO³⁻- + CO₃²⁻.

Learn more about Balance equation, refer to the link:

https://brainly.com/question/7181548

#SPJ12

A sample of hydrogen gas collected at a pressure of 0.923 atm and a
temperature of 17.0 °C is found to occupy a volume of 29.6 liters. How many
moles of H₂ gas are in the sample?
mol

Answers

Answer:

1.15 moles H₂

Explanation:

To find the moles of H₂ gas, you need to use the Ideal Gas Law equation. The equation looks like this:

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas Constant (0.08206 L*atm/mol*K)

-----> T = temperature (K)

Before you can plug the given values into the equation and simplify, you need to convert Celsius to Kelvin.

P = 0.923 atm                     R = 0.08206 L*atm/mol*K

V = 29.6 L                           T = 17.0 °C + 273.15 = 290.15 K

n = ? moles

PV = nRT

(0.923 atm)(29.6 L) = n(0.08206 L*atm/mol*K)(290.15 K)

27.3208 = n(23.809709)

1.15 = n

When enzyme activity rate has reached stability, an increase in the enzyme concentration will.

Answers

When enzyme activity rate has reached stability, an increase in the enzyme concentration will not make any difference in the enzyme rate.

What is an enzyme?

Enzyme are proteins that act as biological catalysts.

How is enzyme activity measured?

Enzyme activity is measured in micromoles of substrate converted (or product generated) per minute, which represents the rate of reaction catalyzed by that enzyme.

The activity an enzyme catalyzes in a reaction is a measure of how much of it is present. Numerous variables, including temperature, pH, and others, have an impact on the connection between activity and concentration.Every time an enzyme's concentration rises, so does its activity. This is as a result of the availability of additional enzymes to bind to the substrate. The reaction time quickens as a result. Increasing the concentration of the enzyme will quicken the reaction as long as there is a substrate for it to bind to.

To learn more about enzyme activity visit:

https://brainly.com/question/13825485

#SPJ4

When enzyme activity rate has reached stability, an increase in the enzyme concentration will not make any difference in the enzyme rate.

What is an enzyme?

Enzymes are proteins that act as biological catalysts.

How is enzyme activity measured?

Enzyme activity is measured in micromoles of substrate converted (or product generated) per minute, which represents the rate of reaction catalyzed by that enzyme.

The activity an enzyme catalyzes in a reaction is a measure of how much of it is present.Numerous variables, including temperature, pH, and others, have an impact on the connection between activity and concentration.Every time an enzyme's concentration rises, so does its activity.This is as a result of the availability of additional enzymes to bind to the substrate.The reaction time quickens as a result.Increasing the concentration of the enzyme will quicken the reaction as long as there is a substrate for it to bind to.

To learn more about enzyme activity visit:

brainly.com/question/13825485

#SPJ4

Where is information found concerning acceptable species substitutions for wood materials used in aircraft repair

Answers

The list of acceptable species of wood materials used in aircraft structure is found in Table 1-1 on Page 1-2 of AC 43.13-1B.

Which types of wood are used in aircraft repair?

Construction of Aircraft with Wood There are four types of wood that are frequently used in the manufacture of aircraft. These include Douglas fir, Sitka spruce, birch, and ash. Additionally, gabon, mahogany, balsa, and pine serve specific purposes. Softwood Sitka Spruce grows in both Canada and the United States of America.

What wood is used for aircraft?

Contrary to popular opinion, Howard Hughes' Spruce Goose was made of birch, not spruce, despite the fact that Sitka spruce is the most often used wood in airplanes. Spruce is regarded as the best natural material for building aircraft because it has one of the highest strengths-to-weight ratios.

For more information about wood materials used in aircraft repair please visit:

brainly.com/question/15086416

#SPJ4

Which of the following are exact
numbers? Select all that apply.

Answers

Answer:

I believe it would be 30, 100, and 1. You count them, and they're significant figures. The decimals are an estimate and cannot be measure exactly. That is what I've learned, not sure what you're learning but hopefully it helps...

Explanation:

Basic explanation is when you count, that's an exact count. You're not estimating. That's real. But for measuring something, you wouldn't have a precise answer because it could go on forever (like Pi)... this is just what i'm assuming.

What is the coefficient for oh−(aq) when s2−(aq) no3−(aq) → s(s) no(g) is balanced in basic aqueous solution?

Answers

From the balanced redox equation of the reaction, the coefficient of OH⁻ is 8.

What is the balanced redox equation of the reaction?

A redox equation is the equation of a redox reaction in which oxidation and reduction occurs simultaneously.

The given redox reaction takes place in a basic solution

The balanced redox equation of the reaction is given below:

4 H₂O(l) + 3 S²⁻(aq) + 2 NO₃⁻(aq) ---> 3 S(s) + 2 NO + 8 OH⁻(aq)

In conclusion, a redox equation is balanced when oxidation and reduction occur to the same extent.

Learn more about redox equations at: https://brainly.com/question/26750732

#SPJ1

Other Questions
in-lab question 6. write out the rate law for the reaction 2 i s2o82- i2 2 so42-. (rate expressions take the general form: rate = k . [a]a . [b]b.) chempadhelp The idea that the way we think about events determines the way we respond to them is a cornerstone of ______ therapy.A. cognitiveB. behavioralC. humanisticD. psychodynamic demand for sodas is normally distributed. the mean of demand is 410 sodas per day and the standard deviation of demand is 37 sodas per day. What is the probability of daily demand being less than 495 sodas? (1942-1943) world war ii battle in the pacific; it represented the first allied counter-attack against japanese forces; allied victory forced japanese forces to abandon the island Calculate the volume of concentrated reagent 18M H2SO4 required to prepare 225 ml of 2.0M solution design a medication class which includes when to begin taking the medication, when to end, proper dosage, and frequency. write a function to generate a schedule when a patient needs to take their medication. how would you adjust your program to allow for medication which can be taken as needed. medication a computer program that seems to perform one function while actually doing something else is called? a small triangle at the clk input on a standard flip-flop symbol indicates that any change in the output is triggered by a clock transition. alcoholics anonymous groups for african americans have been shown to be ineffective. True or False 48 as a tree diagram prime factor Jai spots an airplane on radar that is currently approaching in a straight line, and that will fly directly overhead. The plane maintains a constant altitude of 5375 feet. Jai initially measures an angle of elevation of 15 to the plane at point A. At some later time, he measures an angle of elevation of 30 to the plane at point B. Find the distance the plane traveled from point A to point B. Round your answer to the nearest foot if necessary. Natasha was thinking of a number. Natasha adds 8 then divides by 8 to get an answer of 5. Form an equation with x from the information. The temperature inside a carnot refrigerator placed in a kitchen st 22. 0C is 2C. The heat extracted from the refrigerator is 89MJ/h. What power is needed to operate this refrigerator? Sport Bottle Inc. is considering a project that has the following cash flow and cost of capital (r) data. What is the project's discounted payback period (in years)?Question 11 options:a. 1.89b. 2.24c. 2.48d. 2.67e. 2.73 The language arts teacher wants to know whether the students in the entire school prefer a debate or an speech. The teacher draws a random sample from the following groups:All teachers in the schoolAll boys in each gradeAll students in the speech clubAll students in each gradeWhich group best represents the population she should take a random sample from to get the best results for her survey? (5 points) aAll teachers in the school bAll boys in each grade cAll students in the speech club dAll students in each gradeJohnny wants to know how many students in his school enjoy watching science programs on TV. He poses this question to all 26 students in his science class and finds that 75% of his classmates enjoy watching science programs on TV. He claims that 75% of the school's student population would be expected to enjoy watching science programs on TV. Is Johnny making a valid inference about this population? (5 points) aYes, it is a valid inference because his classmates make up a random sample of the students in the school bYes, it is a valid inference because he asked all 26 students in his science class cNo, it is not a valid inference because he asked all 26 students in his science class instead of taking a sample from his math class dNo, it is not a valid inference because his classmates do not make up a random sample of the students in the schoolA researcher posts a magazine advertisement offering $30 in exchange for participation in a short study. The researcher accepts the first three people who respond to the advertisement. Which of the following statements is true about the sample? (5 points) aIt is not a valid sample because it is not a random sample of the population. bIt is a valid sample because the first three people were selected to participate. cIt is a valid sample because money was offered to participants. dIt is not a valid sample because it is only a short study. If you are experiencing issues reaching a target destination network, and you need to to display each hop to the destination, what command should you use?Select one:a. ipconfigb. tracertc. nslookupd. ifconfig RAIDs. For this question, we'll examine how long it takes to perform a small workload consisting of 12read/ writes to random locations within a RAID. Assume that these random read/writes are spread "evenly" across the disks of the RAID. To begin with, assume a simple disk model where each read or write takes D time units. Show your work. a. Assume we have a 4-disk RAID-0 (striping). How long does it take to complete the 12 writes? b. How long on a 4-disk RAID-1 (mirroring) with 12 writes? c. How long on a 4-disk RAID-4 (parity) with 12 writes? rhe criterion that requires people to be so incapacitated by a mental disorder that they can't care for their basic needs for food, clothing, and shelter is the ________ criterion. aristotle called competence ""practical wisdom"" because it includes what two elements? at what developmental stage do children first learn that there are customs and rituals associated with death such as funerals