Examine the following reaction: CH3COOH + H20 ⇄ CH3C00- + H3O+ Which of the statements is a correct description of this reaction? View Available Hints A.CH3COOH is a strong acid. B.H20 is acting as a Brønsted-Lowry acid. C.CH3COOH and H20 are a conjugate acid-base pair D.CH3C00 is a conjugate base

Answers

Answer 1

The correct description of the reaction is D. [tex]CH_3C00^-[/tex] is a conjugate base.

In the given reaction, [tex]$CH_3COOH$[/tex]acts as an acid and donates a proton [tex]($H^+$) to $H_2O$,[/tex] which acts as a base and accepts the proton to form [tex]$H_3O^+$[/tex]. This process results in the formation of the conjugate base [tex]$CH_3C00^-$[/tex] (acetate ion) and the conjugate acid [tex]$H_3O^+$[/tex](hydronium ion). Therefore, option [tex]$D$[/tex] is correct. Option [tex]$A$[/tex] is incorrect because [tex]$CH_3COOH$[/tex] is a weak acid.

Option [tex]$B$[/tex] is incorrect because [tex]$H_2O$[/tex] is acting as a Brønsted-Lowry base in this reaction. Option $C$ is incorrect because [tex]$CH_3COOH$[/tex] and [tex]$CH_3C00^-$[/tex] are a conjugate acid-base pair, not [tex]$CH_3COOH$[/tex]and [tex]$H_2O$[/tex]. [tex]$H_3O^+$[/tex] is a hydronium ion formed by protonation of water, and [tex]$CH_3COO^-$[/tex]is a conjugate base formed by deprotonation of acetic acid.

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Related Questions

What is δs° for the reaction so2(s) no2(g) → so3(g) no(g)? substance s°(j/k • mol) so2(g) 248.5 so3(g) 256.2 no(g) 210.6 no2(g) 240.5

Answers

The value of ΔS° for reaction  is - 22.2 J/K.mol

[tex]SO_{2}(s)+NO_{2} (g)[/tex] → [tex]SO_{3}(g)+NO(g)[/tex]

Calculation,

Given value of S°(J/K.mol) for

[tex]SO_{2}(s)[/tex] = 248.5

[tex]NO_{2} (g)[/tex] = 240.5

[tex]NO(g)[/tex] = 210.6

[tex]SO_{3}(g)[/tex] = 256.2

Formula used:

ΔS° (Reaction) =  ∑S°(Product) - ∑S°(Reactant)

ΔS° = (256.2 + 210.6 ) - ( 248.5 + 240.5) = 466.8 - 489 = - 22.2 J/K.mol

The change in stander entropy of reaction is  - 22.2 J/K.mol. The negative sign indicates the that entropy of reaction is decreases when reactant converted into product.

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Potassium secretion is linked to:________.
a. sodium reabsorption
b. glucose reabsorption
c. sodium secretion
d. chloride reabsorption
e. chloride secretion

Answers

chloride reabsorption

Which is a type of star system?

Answers

hope my answer is useful..hope my answer is useful..

A balloon contains a 10% glucose solution. The balloon is permeable to water but not to glucose. A beaker contains a 5% glucose solution. What will happen when the balloon is submerged in the beaker

Answers

The state of the balloon:

When the balloon is submerged in the beaker, the amount of water in the beaker will get reduced.  

What is Osmosis:    

Based on the concentration of solutes on both sides of the membrane, water will flow through a permeable membrane in a specific direction.

Hypertonic solution:

It means that there are more solutes present in the surrounding environment than in the cell itself.

Hypotonic solution:

In a hypotonic solution, the concentration of solutes inside the cell is higher than that outside the cell.

When comparing two solutions, the one with the larger solute concentration is hypertonic, and the one with the lower solute concentration is hypotonic. Isotonic solutions have an identical solute concentration.

While the solution in the beaker is hypertonic, Meaning that will draw water molecules out of the cell. As water molecules move from a location of high water potential (dilute solution) to a region of reduced water potential (10% glucose solution), the water from the 5% glucose solution will flow into the 10% one (concentrated solution)This is the reason why the amount of water decreases when the balloon is submerged in the beaker.

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When 3-methyl-2-butanone undergoes a baeyer-villiger oxidation reaction, the product is:_____.

Answers

When 3-methyl-2-butanone undergoes a baeyer-villiger oxidation reaction, the product is isopropyl acetate and methyl isobutyrate.

The Baeyer-villiger oxidation would seem to be a chemical reaction that uses peroxy acids using peroxides as the oxidant to transform a ketone into an ester or a lactone from such a cyclic ketone.

The main product produced by the Baeyer-Villiger oxidation of camphor using m-CPBA in buffer conditions could be created as a result of the migration of a tertiary bridgehead carbon as opposed to a methylene group.

By the reaction between 3-methyl-2-butanone with m-CPBA , will form isopropyl acetate and methyl isobutyrate.

It reaction can be shown as:

Therefore, when 3-methyl-2-butanone undergoes a Baeyer-villiger oxidation reaction, the product is isopropyl acetate and methyl isobutyrate.

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A certain amount of substance has a mass of 120 g and the number of moles is 2. Calculate the molar mass. Group of answer choices

Answers

Answer:

60 g / mole

Explanation:

120 g  / 2 mole   = 60  g/mole

Blank + 3Fe, reaction arrow, Fe3O4+4H2
How to complete this equation so that it is a Single displacement reaction

Answers

The complete reaction equation is [tex]3Fe + 4H_2O -- > Fe_3O_4 + 4H_2[/tex]

What are single displacement reactions?

They are reactions in which one of the elements in a reactant is displaced by another element in the product.

In the reaction leading to the production of [tex]Fe_3O_4[/tex], Fe displaced H atoms from [tex]H_2O[/tex].

Thus, the equation of the reaction is as follows:

[tex]3Fe + 4H_2O -- > Fe_3O_4 + 4H_2[/tex]

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If the dissociation constant of a weak acid is 7.1 x 10-5, at what ratio should you adjust the concentration of the weak acid and its conjugate base in order to prepare a buffer that has a pH of 4.15

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The combustion of hydrogen gas releases 286 kJ per mol of hydrogen. If 13.0 L of hydrogen at STP was burned to produce electricity, how long would it power a 100-watt (W) light bulb

Answers

Combustion of hydrogen produces electricity:

It would power a 100-watt (W) light bulb in 27.66 min.

Calculation:

At STP conditions, we know that 1 mole of any gas is contained in 22.4L.

So let's make the operation:

The volume of one mole of gas at STP is 22.4 L

Then, 13.0 L may be the volume for (13.0) /22.4  = 0.58 moles.

The total energy is released = 0.58 x 286 kJ

Total energy = 165.98 kJ

Energy = Power x time

Time = energy / power

where power = 100W = 100 J/s

Therefore, Time = 165.98 kJ/ 100J/s = 1659.8 sec

Time = 1659.8 sec / 60 min = 27.66 min

∴ Time = 27.66 min

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Gaseous nitrogen dioxide dissolved in warm liquid water to form hno3 and gaseous nitrogen monoxide enter a balanced equation for this reaction

Answers

Answer:

3 NO₂ (g) + H₂O (l) ---> 2 HNO₃ (aq) + NO (g)

Explanation:

Gaseous nitrogen dioxide = NO₂ (g)

Liquid water = H₂O (l)

Because the reactants are dissolved = HNO₃ (aq)

Gaseous nitrogen monoxide = NO (g)

In order for a reaction to be balanced, there needs to be an equal amount of each type of atom on both sides of the equation. The equation can be balanced by adding coefficients to modify the quantities of certain compounds.

The unbalanced equation:

NO₂ (g) + H₂O (l) ---> HNO₃ (aq) + NO (g)

Reactants: 1 nitrogen, 3 oxygen, 2 hydrogen

Products: 2 nitrogen, 4 oxygen, 1 hydrogen

The balanced equation:

3 NO₂ (g) + H₂O (l) ---> 2 HNO₃ (aq) + NO (g)

Reactants: 3 nitrogen, 7 oxygen, 2 hydrogen

Products: 3 nitrogen, 7 oxygen, 2 hydrogen

Determine the number of oxygen atoms in 1.00 g of CaCO3

Answers

Answer:

1.81 x 10²² atoms O

Explanation:

To find the number of oxygen atoms, you need to (1) convert grams CaCO₃ to moles CaCO₃ (via molar mass), then (2) convert moles CaCO₃ to moles O (via mole-to-mole ratio from formula subscripts), and then (3) convert moles O to atoms O (via Avogadro's Number). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the amount of sig figs in the given value.

Molar Mass (CaCO₃): 40.078 g/mol + 12.011 g/mol + 3(15.998 g/mol)

Molar Mass (CaCO₃): 100.083 g/mol

1 CaCO = 1 Ca and 1 C and 3 O

Avogadro's Number:

6.022 x 10²³ atoms = 1 mole

1.00 g CaCO₃           1 mole                 3 moles O           6.022 x 10²³ atoms
----------------------  x  ------------------  x  ----------------------  x  ------------------------------  =
                                100.083 g          1 mole CaCO₃                 1 mole

=  1.81 x 10²² atoms O

The half-life of silicon-32 is 710 years. If 40 grams is present now, how much will be present in 800 years

Answers

18 g of silicon-32 will be present in 800 years.

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and it's given by

                              [tex]N(t) = N_0 (\frac{1}{2}) ^\frac{t}{t_\frac{1}{2} }[/tex]

where,

[tex]N(t) =[/tex] quantity of the substance remaining

[tex]N_0 =[/tex]  the initial quantity of the substance

[tex]t =[/tex]  time elapsed

[tex]t_1_/_2 =[/tex] the half-life of the substance

From the given information we know:

The initial quantity of silicon-32 is 40 g.

The time elapsed is 800 years.

The half-life of silicone-32 is 710 years.

So, using the calculation above, we can determine how much silicon-32 is left.

                  [tex]N(t) = 40 (\frac{1}{2}) ^\frac{800}{710} \\N(t) = 40 (\frac{1}{2}) ^\frac{80}{71} \\\\N(t) = 18 g[/tex]

Therefore,18 g of silicon-32 will be present in 800 years.

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A chemist develops a medicine
to help patients with thyriod
problems. In which branch of
chemistry is this chemist
working.

Answers

Answer:

Medicinal Chemistry

Explanation:

Medicinal Chemistry deals with the development, design and production of medicines.

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what is the color of phenolphthalein in weak base

Answers

Answer:

Pink

Explanation:

Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions.

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Answer:

pink

Explanation:

Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions.

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It is a long tube-like canal ,also called alimentary canal where digestion take place.

Answers

Explanation:

The alimentary canal is the long tube of organs - including stomaches and intestines

Answer: digestive strat.

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How many moles of carbon are in 7.87x10^7 carbon atoms
?x10^?

Answers

Answer:

1.3 x10^-16

Explanation: answered it in your comments! :)

The soft ionization technique that uses a UV-absorbing compound upon which the analyte of interest is placed and eventually vaporized into a plume of ions directed into the mass analyzer is

Answers

The soft ionization technique that uses a UV-absorbing compound upon which the analyte of interest is placed and eventually vaporized into a plume of ions directed into the mass analyzer is matrix-assisted laser desorption ionization.

What is Soft ionization technique ?

Soft Ionizer produces less fragment ions. Soft ionizer produce the molecular ions or a quasi molecular ion. This technique not fragment the macromolecules into the more smaller charged particles.

Thus from the above conclusion we can say that The soft ionization technique that uses a UV-absorbing compound upon which the analyte of interest is placed and eventually vaporized into a plume of ions directed into the mass analyzer is matrix-assisted laser desorption ionization.

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Experiment 1: in the synthesis reaction, the white powder produced is magnesium oxide (mgo, mm = 40.3 g/mol). how many moles (n) of magnesium oxide were formed? select the closest answer.

Answers

1.98 moles of Magnesium oxide were formed.

What is Balanced Chemical Equation ?

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

Now write the balanced chemical equation

2Mg + O₂ → 2MgO

(2 × 24)          2 × (24 + 16)

48 g of Mg gives 80 g of MgO

How to find the number of moles ?

To find the number of moles use the expression

Number of moles = [tex]\frac{\text{Given mass}}{\text{Molar mass}}[/tex]

                              = [tex]\frac{80}{40.3}[/tex]

                              = 1.98 mole

Thus from the above conclusion we can say that 1.98 moles of Magnesium oxide were formed.

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How many atoms are in 76.15 grams of fe

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Answers

Answer:

See below

Explanation:

From periodic table

mole weight of Fe   is   55.845  gm / mole

76.15 gm  /  55.845 gm/mol   *  6.022 x 10^23  atoms/mole =

                8.212 x 10^23   atoms    ( four signif. digits)

The molar mass of calcium chloride (CaCl₂) is
110.98 g/mol. If you were to calculate the number
of moles in 23.4 g of CaCl₂, which example shows
the correct way to set up the calculation?
O
23.4 g CaCl₂x.
O
110.98 g CaCl₂
1mole CaCl₂
1 mole CaCl₂
110.98 g CaCl₂
23.4 g CaCl₂x-

Answers

The example that shows the correct way to set up the calculation will be the second example.

Number of moles

Mathematically:

  Number of moles = mass/molar mass

In this case, mass = 23.4 g and molar mass = 110.98 g/mol

Number of moles = 23.4/110.98 = 0.21 moles

Thus, the second example is the correct way.

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The elements of the group IA are termed as alkali metals, because their ___ are alkaline.

Answers

The answer is hydroxides.

The elements of the group IA are termed as alkali metals, because their hydroxides are alkaline.

An oxygen gas tank holds 1 mole of gas at 10.0 atm of pressure. In order to reduce the pressure of the tank to 2.5 atm, moles must be released. How many moles will be left

Answers

Answer:

0.25 moles

Explanation:

To find the number of moles, you need to use a variation of the Ideal gas Law. The manipulated equation looks like this:

P₁ / n₁ = P₂ / n₂

In this formula, "P₁" and "n₁" represent the initial pressure and number of moles. "P₂" and "n₂" represent the final pressure and number of moles. You can find the final amount of moles by plugging the given values into the equation and simplifying.

P₁ = 10.0 atm                      P₂ = 2.5 atm

n₁ = 1 mole                          n₂ = ? moles

P₁ / n₁ = P₂ / n₂                                                <----- Equation

(10.0 atm) / (1 mole) = (2.5 atm) / n₂               <----- Insert values

10.0 = (2.5 atm) / n₂                                        <----- Divide 1 from 10.0

(10.0) x n₂ = 2.5 atm                                       <----- Multiply both sides by n₂

n₂ = 0.25                                                        <----- Divide both sides by 10.0

Lead-202 has a half-life of 53,000 years. How long will it take for 15/16 of a sample of lead-202 to decay?.

Answers

Answer:

212 000 yrs

Explanation:

15/16 decay means 1/16 is left

 how many halflives is this?

                    (1/2)^n = 1/16

                       n = 4   half lives

4 half lives * 53 000 yr/ half life = 212 000 yrs

Answer:

c. 212,000 years

Explanation:

got it right on edge:3

23
What is the mass of 3.01 x 10 atoms of neon?

Answers

Answer:

10.0 g

Explanation:

Avogadro's law states that there are 6.02 × 10²³ molcules in one mole of a substance, so we know that this sample has half a mole of neon.

The atomic mass of neon is 20.1797 g/mol, so 0.5 mol has a mass of about 10.0 g.

it is 10.09 g

According to Avogadro;

1 mole of neon would have 6.022 x 10^23 atoms

3.0 x 10^23 atoms of neon would have:

            3.0 x 10^23/6.022 x 10^23

                                         = 0.5 moles

mass of 0.5 moles neon = mole x molar mass

                                            = 0.5 x 20.18

                                             = 10.09 g

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In general, which solvent should be used to wash the solid material collected from a filtration?

Answers

The same solvent as the liquid in the original mixture should be used to wash the solid material collected from a filtration.

The solid material which is collected from the filtration is washed by that solvent in which that solid material is dissolved. Generally methanol solvent is used to wash the solid material collected from a filtration.

The filtration is the process in which solid particles present in liquid or gaseous fluid are removed by using of a filter.This filter is only permits or allow only the fluid to pass though it and retain the solid particles.The solid particles left is known as filtrate.

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one model that shows how energy passes from organism to organism is called? 1. an energy link 2. a food chain 3. a phytoplankton cycle

Answers

An energy link. Don’t know how to explain

The formula c₂H₄o can represent?

Answers

Answer:

Ethylene oxide

Explanation:

Ethylene oxide is an organic compound with the formula C2H4O. It is a cyclic either and the simplest epoxied: a three-membraned ring consisting of one oxygen atom and two carbon atoms!

What is the de broglie wavelength of an electron (m = 9. 11 × 10-31 kg) moving at a velocity of 3. 0 × 107 m/s?

Answers

the de Broglie wavelength of the electron moving at a velocity of 3. 0 × 107 m/s is 2.4×10∧-11nm

lambda = h/mv

The de Broglie wavelength is defined as follows: lambda = h/mv, wherein the greek letter lambda represents the wavelength, h is Planck's consistent, m is the particle's mass and v is its pace. One may also explicit mv as the particle's momentum

according to wave-particle duality, the De Broglie wavelength is a wavelength manifested in all the gadgets in quantum mechanics which determines the chance density of locating the item at a given factor of the configuration area. The de Broglie wavelength of a particle is inversely proportional to its momentum

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Based on their composition and structure list, CH2Cl2, CH3CH2CH3, and CH3CH2OH in order of: a. Increasing intermolecular forces b. Increasing viscosity c. Increasing surface tension

Answers

Based on their composition and structure list CH₂Cl₂, CH₃CH₂CH₃ and CH₃CH₂OH in order of (a) Increasing order of Intermolecular Forces are CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH. (b) Increasing order of Viscosity are CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH. (c) Increasing order of Surface Tension are: CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH.  

What is Intermolecular Forces ?

Intermolecular forces often abbreviated to IMF (or Secondary force) are the forces that hold atoms together with in a molecule. These forces are electrostatic in nature and exist between molecules.

Increasing order of Intermolecular Forces are: CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH.

How Intermolecular forces affect Viscosity ?

Higher the intermolecular force then higher the viscosity. Stronger the intermolecular force then stronger the viscosity.          

Increasing order of Viscosity are: CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH.    

How Intermolecular forces affect Surface tension ?

Stronger the intermolecular forces of liquid have higher surface tension. Surface tension depend upon the intermolecular forces.

Increasing order of Surface Tension are: CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH.  

Thus from the above conclusion we can say that Based on their composition and structure list CH₂Cl₂, CH₃CH₂CH₃ and CH₃CH₂OH in order of (a) Increasing order of Intermolecular Forces are CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH. (b) Increasing order of Viscosity are CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH. (c) Increasing order of Surface Tension are: CH₃CH₂CH₃ < CH₂Cl₂ < CH₃CH₂OH.  

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5.690x10^3 miles to meters and give sig figs
Please help!

Answers

The equivalent of 5.690 × 10³ miles in metres is 9157167 metres. Details about metres and miles can be found below.

How to convert miles to metres?

Miles and metres are both units for measuring distance between two bodies or locations.

However, they can be converted interchangeably as follows:

1 mile = 1609.34 metres

According to this question, 5.690 × 10³ miles can be converted to metres as follows;

5.690 × 10³ × 1609.34 = 9157167 metres.

Therefore, the equivalent of 5.690 × 10³ miles in metres is 9157167 metres.

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