What is the energy of light with a wavelength of 589 nm? (The speed of light
in a vacuum is 3.00 × 108 m/s, and Planck's constant is 6.626 × 10-34 J.s.)

Answers

Answer 1

The energy of light with a wavelength of 589 nm is approximately 3.36 × 10^(-19) Joules.

To calculate the energy of light, we can use the equation E = hc/λ, where E represents the energy, h is Planck's constant (6.626 × 10^(-34) J·s), c is the speed of light in a vacuum (3.00 × 10^8 m/s), and λ is the wavelength of light.

Given that the wavelength is 589 nm (which is equivalent to 589 × 10^(-9) m), we can substitute the values into the equation:

E = (6.626 × 10^(-34) J·s × 3.00 × 10^8 m/s) / (589 × 10^(-9) m)

Simplifying the equation, we get:

E = (1.9778 × 10^(-25) J·m) / (5.89 × 10^(-7) m)

Dividing these values, we find:

E ≈ 3.36 × 10^(-19) J

For more such questions on energy

https://brainly.com/question/30128198

#SPJ11


Related Questions

What is common to solving all mola mass problems?

Answers

All you need to do is to follow these 3 steps.

1. Estimate the number of each kind of atom present in the compound using the chemical formula in order to determine the molar mass of the molecule.

Divide each element's atomic weight (found in the periodic table) by the quantity of that element's atoms in the compound.Add up the total, then follow the number with the units of grams/mole.

eg. Water

2 hydrogen atoms and 1 oxygen atom make up the chemical formula H20.H- 1's atomic weightO-16's atomic weightNumber of H atoms overall in formula 2Number of O atoms overall in formula 1The molar mass will thus be as follows: H 2 x 1= 2 O 1 x 16= 16 16+2= 18Water's molar mass is 18 g/mol as a result.

please help me with this question

Answers

1. The resulting concentration will be 0.00044 mol/L

2. The minimum mass of sodium sulfite to add will be 0.4032 grams.

Stoichiometric problems

1. Using m1v1=m2v2

  m1 = 0.01 mol/L, v1 = 20 mL, v2 = 450 mL

 

       m2 = m1v1/v2 = 0.01 x 20/450 = 0.00044 mol/L

2. [tex]Na_2SO_3 + Ca(NO_3)_2 --- > 2NaNO_3 + CaSO_3[/tex]

Mole ratio of the reactants = 1:1

Mole of 80 mL, 0.0400 mol/L Ca(NO3)2 = 80/1000 x 0.0400 = 0.0032 mol

Equivalent mole of Na2SO3 = 0.0032 moles

Mass of 0.0032 moles Na2SO3 = 0.0032 x 126 = 0.4032 grams

Thus, the minimum mass of sodium sulfite to be added must be 0.4032 grams.

More on stoichiometric calculations can be found here: https://brainly.com/question/27287858

#SPJ1

What would the hydrogen ion concentration be if the pOH was 6?

Answers

Answer:

10-6mol/l

Explanation:

hope i helped

what is the name of p214

Answers

diphosphorus tetraiodide is the name of the p2I4 compound.

What is the name of p2I4?

The name of p2I4 is diphosphorus tetraiodide because there are two atoms with phosphorus and four atoms with iodine. We know that 'di' word is used for two while on the other hand, tetra word is used for four.

So we can conclude that diphosphorus tetraiodide is the name of the p2I4 compound.

Learn more about phosphorus here: https://brainly.com/question/25352398

#SPJ1

Identify the Brønsted–Lowry acid and the Brønsted–Lowry
base on the left side of each of the following equations, and
also identify the conjugate acid and conjugate base of each
on the right side:
HCOOH(aq) + PO43-(aq) gives HCOO-(aq) + HPO42-(aq)

Answers

The following applies to the above equation:

Brønsted–Lowry acid - HCOOHBrønsted–Lowry base - PO43-Conjugate acid - HPO42-Conjugate base - HCOO-

What is Bronsted-Lowry acid and base?

Brønsted-Lowry acid is the any chemical species that acts as a donor of protons while Brønsted-Lowry base is any chemical species that acts as a proton acceptor.

In the following equation: HCOOH(aq) + PO43-(aq) = HCOO-(aq) + HPO42-(aq)

HCOOH is the proton (H+) donor, hence, is the Brønsted-Lowry acidPO43- is the donor acceptor, hence, is the Brønsted-Lowry baseHCOO- is the conjugate base that forms from the acidHPO42- is the conjugate acid that forms from the base

Learn more about Brønsted-Lowry acid and base at: https://brainly.com/question/15885173

#SPJ1

Select the correct structure that
corresponds to the name.
1,1,1-trifluoroethane

Answers

The correct chemical structure that corresponds to 1,1,1-trifluoroethane is (a).

What is  1,1,1-trifluoroethane?

A chemical structure is a spatial arrangement of atoms in a molecule. It determines the molecular geometry and when necessary the electronic chemistry as well .1,1,1-Trifluoroethane or simply known as trifluoroethane is Hydrofluorocarbon (HFC) compound that is colourless and highly inflammable gas with ether like odour. One method of preparation of 1,1,1-Trifluoroethane is by fluorination of 1-chloro-1,1-difluoroethane in the presence of hydrofluoric acid.  The chemical formula for 1,1,1-Trifluoroethane is [tex]C__{2} } H_{3} F_{3}[/tex]. The high stability of it's chemical structure because of being heavier than air makes it a greenhouse gas with high infrared absorbent power. It can be used as a propellant or refrigerant and in cleaning of electrical equipments.

Learn more about 1,1,1-trifluoroethane here:

https://brainly.com/question/1390779

#SPJ1

How many moles of nitrogen gas are there in 6.8 liters at room temperature and pressure (293 K and 100 kPa)?

A. 163.2
B. 0.28
C. 152.3
D. 0.30

Answers

0.28 moles of nitrogen gas are there in 6.8 liters at room temperature and pressure (293 K and 100 kPa).

Ideal gas law :

An ideal gas is a gas in which atoms dose not exert any force on each other even after collision which walls and other atoms (inelastic collisions).

Mole definition:

The mole is the amount of compound present in a given system which has molecular mass as that of the mass of carbon12 .carbon 12

Using ideal gas law ,

PV=nRT

Given,

pressure = P = 100kPa

Volume = V = 6.8 Lit

Temperature = room temperature = T = 293 K

R= universal gas constant = 8.314

n= moles = ?

∴[tex]n = \frac{PV}{RT}[/tex]

∴ n = 100 × 6.8 / 8.314 × 293

∴n = 0.28 moles

Learn more about moles here..

https://brainly.com/question/1427235

#SPJ1

1. given 5 mols of the compound below what is the mol ratio between the compound and O? Ca_4Si_2O_6(CO_3)(OH)_2
2. Given 2 mols of the compound in problem one what is the mol to mol ratio os Si?
3. Given 5 mols of the compound in problem one what is the mol to mol ratio between the compound and Ca?
4. Given 3.5 mols of the compound in problem one what is the mol to mol ratio between the compound and C?
5. in the reaction below give the mol to mol ratio between the underlined species
Pb(NO_3)_2(ap)+2KI(aq) -> PbI_2(s)+2KNO_3(aq)
underline underline

Answers

The mole ratio of the compound and its constituent elements are as follows:

The mole ratio between the compound and O is 5 : 22The mole ratio between the compound and Si is 2 : 4The mole ratio between the compound and Ca is 5 : 20The mole ratio between the compound and C is  1 : 1

What is mole ratio?

Mole ratio is the ratio of the moles of one or more elements or compounds to another.

The given compound is Ca₄Si₂O₆(CO₃)(OH)₂

Moles of oxygen present in 1 mole of compound = 11 moles

Moles of Si present in 1 mole of compound = 2 moles

Moles of Ca present in 1 mole of compound = 4 moles

Moles of C present in 1 mole of compound = 1 mole

Given 5 moles of the compound below, the mole ratio between the compound and O is 5 : 22Given 2 moles of the compound below, the mole ratio between the compound and Si is 2 : 4Given 5 moles of the compound below, the mole ratio between the compound and Ca is 5 : 20Given 3.5 moles of the compound below, the mole ratio between the compound and C is  1 : 1

Given the equation of the reaction below;

Pb(NO₃)₂ (aq) + 2 KI (aq) --> PbI₂ (s) + 2 KNO₃ (aq)

the mole ratio of the reactants and products are as follows:

Pb(NO₃)₂ : 2 KI (aq) = 1 : 2Pb(NO₃)₂ : PbI₂ (s0 = 1 : 1Pb(NO₃)₂ : 2 KNO₃ (aq) = 1 : 2

In conclusion, the mole ratio of reaction is the ratio in which moles of the substances combine.

Learn more about mole ratio at: https://brainly.com/question/19099163

#SPJ1

How do you separate Sand Potassium Nitrate and Champhor

Answers

Heating & Cooling: The mixture is heated to get a saturated solution and it crystallises on cooling. Now since, potassium nitrate is more soluble it gets filtered out from the hot saturated solution and recrystallised in hot water and then dried. This separates the two mixtures into crystals.

How can mechanical waves help in the treatment of cancer?

Answers

Mechanical waves can help in the treatment of cancer due to heat generated by the high frequency waves.

What is mechanical wave?

A mechanical wave is a wave that requires material medium for its propagation, example include;

water waves, sound waves, and seismic waves.

Mechanical waves in treatment of cancers

Sound wave in example of mechanical wave because it requires material medium for its propagation.

High-frequency sound waves (HIFU) is used in the  treatment  of cancer because the strong beam generates heat which is directed to a specific part of a cancer.

The heat generated destroys the cancer cells.

Thus, mechanical waves can help in the treatment of cancer due to heat generated by the high frequency waves.

Learn more about mechanical waves here: https://brainly.com/question/9242091

#SPJ1

A mixture contains NaHCO3
together with unreactive components. A 1.68 g sample of the mixture reacts with HA
to produce 0.561 g of CO2

.

The molar mass of NaHCO3
is 84.01 g/mol
and the molar mass of CO2
is 44.01 g/mol.
What is the percent by mass of NaHCO3
in the original mixture?

Answers

Answer: 63.75 %

Explanation:

The balanced chemical equation for this reaction is:

NaHCO3 + HA = NaA + H2O + CO2

According to the chemical equation, one mole of NaHCO3 will react with one mole of HA to form one mole of NaA, H2O and CO2. All the components are in same mole ratio of 1:1:1:1

So,

Moles of CO2 = weight/molar mass = 0.561/44 = 0.01275 moles

Moles of CO2 will be equal to moles of NaHCO3 = 0.01275 moles

Moles = weight/mass

Weight = moles × mass

So the weight of NaHCO3 = 0.01275 × 84.01 = 1.071 g

The percentage mass of NaHCO3 in the original mixture =(1.071/1.68)× 100% = 63.75 %

Therefore, the percent by mass of NaHCO3 in the original mixture was 63.75 %

A 36.65g sample of solid is placed in a flask. Toluene in which the solid is insoluble ,is added to the flask so that the volume of solid and liquid together is 50.00mL.The solid and toluene together weigh 58.58 g .The density of toluene at temperature of the experiment is 0.864g/ml .what is the density of the solid?

Answers

The density of the solid is =0.3076g/ml

Calculation of the density of solid

The mass of solid in flask = 36.65g

The volume of both solid and Toluene = 50ml

The mass of both solid and Toluene = 58.58g

The density of toluene = 0.864g/ml

The density of the solid = X

Note: The density of the solid is calculated from the density of both the solid and toluene.

But the density of solid+ toluene;

=mass/volume

= 58.58g/50ml

= 1.1716g/ml

Therefore the density of solid alone = density of both solid +toluene - density of toluene.

= 1.1716g/ml - 0.864g/ml

= 0.3076g/ml

Learn more about density here:

https://brainly.com/question/406690

#SPJ1

The question is in the photo

Answers

The concentration of LiOH in the reaction is 0.103 M

What is the concentration of lithium hydroxide?

This is a neutralization reaction and the equation of the reaction is written as; H2SO4(aq) + 2LiOH(aq) ---->Li2SO4(aq) + H2O(l)

The average volume of acid used is obtained from;

8.54 + 8.51 + 8.68/ 3 = 8.58 mL

CA = 0.150 M

VA = 8.58 mL

CB = ?

VB= 25.0 mL

NA = 1

NB = 2

CAVA/CBVB = NA/NB

CAVANB = CBVBNA

CB = CAVANB/VBNA

CB = 0.150 * 8.58 * 2/25.0 * 1

CB = 0.103 M

The concentration of LiOH in the reaction is 0.103 M

Learn more about neutralization reaction:https://brainly.com/question/20038776

#SPJ1

Minute maid states that a bottle of juice contains 473 ml. Consumer groups are interested in determining if the bottles contain less than the amount stated on the label. To test their claim, they sample 30 bottles. The sample mean was 472ml and the standard deviation is 0. 2. What does mu represent here?.

Answers

The term mu here represents the average contents of all bottles of juice in the population, which is unknown. Option B

What is the standard deviation?

The term standard deviation has to do with the extent that values are scattered around the mean. Now we know that the mean is the average of the distribution.

The standard deviation shows the extent to which the values differ from the mean value of the distribution. It is a measure of dispersion.

Thus, the term mu here represents the average contents of all bottles of juice in the population, which is unknown. Option B

Learn more about standard deviation:https://brainly.com/question/13498201

#SPJ1

Missing parts;

Minute Maid states that a bottle of juice contains 473 mL. Consumer groups are interested in determining if the bottles contain less than the amount stated on the label. To test their claim, they sample 30 bottles. The sample mean was 472mL and the standard deviation is 0.2.

What does mu represent here?

A. The average contents of all bottles of juice in the sample, which is unknown.

B. The average contents of all bottles of juice in the population, which is unknown.

C. The average contents of all bottles of juice in the population, which is 472mL.

D. The average contents of all bottles of juice in the sample, which is 472mL.

A 0.266-g sample of NaC1 (molar mass = 58.44 g/mol) is dissolved in enough water to make 5.20 mL of
solution. Calculate the molarity of the resulting solution.
O 0.875 M
O 4.55 x 10-3 M
O 0.987 M
O 1.14 M
O 0.731 M

Answers

0.266g / 58.44g/mol= 0.00455mol
M= moles / volume (L)
0.00455mol / .0052L
M= 0.875

A gaseous compound containing hydrogen and carbon is decomposed and found to contain 90.00% carbon and 10.00% hydrogen by mass. The mass of 371 mL of the gas, measured at 415 mm Hg and 41°C, is found to be 0.315 g. What is the molecular formula of the compound?

Answers

The molecular formula of the compound is C₃H₄.

What is the molecular formula of the compound?

The molecular formula of the compound is determined from the molecular mass of the compound.

The molecular mass of the compound is derived using the general gas equation as follows:

P₁V₁/T₁ = P₂V₂/T₂

V₂ = P₁V₁T₂/P₂T₁

Volume at STP, V₂ = (415 * 371 * 298(760 * 314)

V₂ = 192.26 mL = 0.192 L

Molar mass of gas = 22.4/0.192 * 0.315 = 36.75 g

Molecular formula is then determined from the mole ratio of the elements;

Carbon = 0.9 * 36.75/12 = 3

Hydrogen = 0.1 * 40/1 = 4

Thus, the molecular formula of the compound is C₃H₄.

In conclusion, the molecular formula of the gas is derived from the molecular mass.

Learn more about molecular formula at: https://brainly.com/question/26388921

#SPJ1

what is the solubility of KCI?

Answers

Answer:

Potassium chloride.

What would the hydrogen ion concentration be if the pOH was 6?

Answers

Taking into account the definition of pH and pOH, the hydrogen ion concentration will be 1×10⁻⁸ M.

Definition of pH

pH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.

The pH is defined as the negative base 10 logarithm of the activity of hydrogen ions, that is, the concentration of hydrogen ions or H₃O⁺:

pH= - log [H⁺]= - log [H₃O⁺]

Definition of pOH

Similarly, pOH is a measure of hydroxyl ions in a solution and is expressed as the logarithm of the concentration of OH⁻ ions, with the sign changed:

pOH= - log [OH⁻]

Relationship between pH and pOH

The following relationship can be established between pH and pOH:

pOH + pH= 14

Hydroxide ion concentration

In this case, you know that pOH= 6.

Replacing in the relationship established between pH and pOH, the pH can be calculated as:

pH + 6= 14

Solving:

pH= 14 - 6

pH= 8

Replacing in the definition of pH the concentration of H⁺ ions is obtained:

- log [H⁺]= 8

Solving:

[H⁺]= 10⁻⁸

[H⁺]= 1×10⁻⁸ M

In summary, the hydrogen ion concentration will be 1×10⁻⁸ M.

Learn more about pH and pOH:

brainly.com/question/16032912

brainly.com/question/13557815

#SPJ1

(Yield Problem)
3Mg+2FeCl3=2Fe+3MgCl2
When 20.5 g of Mg reacts with an excess of FeCl3, 25.9 g of Fe is produced. What is the percent
yield of the reaction?

Answers

Answer:

Percent Yield Fe  =  82.5%

Explanation:

The actual yield is the value produced after an experiment is conducted. The theoretical yield is the value calculated using the balanced chemical equation and atomic/molar masses.

To find the percent yield of iron (Fe), you need to (1) convert grams Al to moles Al (via atomic mass), then (2) convert moles Al to moles Fe (via mole-to-mole ratio from equation coefficients), then (3) convert moles Fe to grams Fe (via atomic mass), and then (4) calculate the percent yield. It is important to arrange the ratios in a way that allows for the cancellation of units. The final answer should have 3 sig figs to reflect the sig figs of the given values.

Atomic Mass (Mg): 24.305 g/mol

Atomic Mass (Fe): 55.845 g/mol

3 Mg + 2 FeCl₃ -----> 2 Fe + 3 MgCl₂

20.5 g Mg           1 mole              2 moles Fe            55.845 g
-----------------  x  -----------------  x  ----------------------  x  -----------------  =  
                           24.305 g           3 moles Mg             1 mole

=  31.4 g Fe

                                     Actual Yield
Percent Yield  =  ----------------------------------  x  100%
                                 Theoretical Yield

                               25.9 g Fe
Percent Yield  =  --------------------  x  100%
                               31.4 g Fe

Percent Yield  =  82.5%

What volume of barium chloride, BaCl2 is needed to make a 2.5 M barium
chloride solution with 0.45 mol BaCl2?

Answers

Answer:

0.18 L

Explanation:

You can find the volume using the molarity ratio:

Molarity = moles / volume (L)

You can plug the given values into the equation and simplify to find the volume.

Molarity = moles / volume                           <----- Molarity ratio

2.5 M = 0.45 moles / volume                      <----- Insert values

(2.5 M) x volume = 0.45 moles                   <----- Multiply both sides by volume

volume = 0.18 L                                            <----- Divide both sides by 2.5

a gas has a density of 3.21 g/L at stp what is the gas

Answers

The gas is bromine. (This is a fact)

In this activity, you are tasked with designing an airbag for a company that creates airbags for automobiles. You must design the driver’s front airbag for a specific car model so it will protect the driver as effectively as possible. For this car, the airbag must have a volume of 58 liters when fully inflated. To provide an adequate cushion for the driver’s head, the air pressure inside the airbag should be 4.4 psi. This pressure value is in addition to the normal atmospheric pressure of 14.7 psi, giving a total absolute pressure of 19.1 psi, which equals 1.30 atmospheres.

Answers

The airbag is designed to produce the volume of nitrogen gas required to fill up the airbag.

What is the function of an airbag?

An airbag is a bag which is designed to self-inflate and serve as a cushion for the head and neck of a driver to prevent injuries when an impact occurs head-on on the car.

The gas that inflates the airbag is nitrogen which is produced from sodium azide according to equation below:

2NaN₃ → 2Na + 3N₂

In conclusion, the design of the airbag is such that the correct amount of sodium azide is present to produce the volume of nitrogen required to fill up the airbag.

Learn more about airbags at: https://brainly.com/question/9697503

#SPJ1

Analyze the following reaction and the given scenarios to discuss the relationship between volume and reaction rate. Determine which reaction will happen at a faster rate and explain why.

NH3(g) + 2O2(g) → HNO3(l) + H2O(l)

The first reaction is started in a gas chamber with a volume of 10 L. The second reaction is started in a gas chamber with a volume of 5 L.

Answers

The second reaction with the volume of 5L will occur faster as compared to the first reaction of volume 10L.

Volume is inversely proportional to the rate of reaction.

As volume increases rate of reaction decreases and as volume decreases rate of reaction increases.

Let's consider a reaction A   →  B.

r is rate of reaction and K is rate constant, A is the concentration of reaction.

r = k(A)

r is directly proportional to the A.

But the concentration of A is in Moles/liters (i.e. moles per unit volume)

r is inversely proportional to the volume of vessel or chamber.

 Hence as volume increases rate of reaction decreases.

For study more about reaction rate refer following link https://brainly.com/question/19513092.

#SPJ1.

help me out with this question

Answers

The concentration will be 12 M. The first option is the correct one.

Concentration

It is calculated by dividing the number of moles of solute present in a solution by the volume of the solution.

In this case, the number of moles of solute = 1.2 mols

volume of solvent = 100 mL or 0.1 L

Concentration of the solution = 1.2/0.1 = 12 mol/L or 12 M

More on concentration can be found here: https://brainly.com/question/10725862

#SPJ1

Allowing water to cascade or bubble in a fountain during the purification process is an example of
a chemical reaction
O a solid dissolving in a liquid
O only a and b
O ion exchange
O a gas dissolving in a liquid

Answers

Answer:

ion exchange

Explanation:

because in the time period of chemical reactions it product ion

B- ion exchange should be it

A[?] is a heterogeneous mixture which settles on standing and its components can be separated by filtration. colloid suspension​

Answers

I think it should be suspension.

How many atoms of oxygen are present in 7.51 grams of
glycine with formula C₂H5O2N?

Answers

1.205 × 10²³ atoms of oxygen will be present in 7.51 grams of glycine with formula C₂H5O2N. Details about number of atoms can be found below.

How to calculate number of atoms?

The number of atoms of a substance can be calculated by multiplying the number of moles of the substance by Avogadro's number.

However, the number of moles of oxygen in glycine can be calculated using the following expression:

Molar mass of C₂H5O2N = 75.07g/mol

Mass of oxygen in glycine = 32g/mol

Hence; 32/75.07 × 7.51 = 3.2grams of oxygen in glycine

Moles of oxygen = 3.2g ÷ 16g/mol = 0.2moles

Number of atoms of oxygen = 0.2 × 6.02 × 10²³ = 1.205 × 10²³ atoms

Therefore, 1.205 × 10²³ atoms of oxygen will be present in 7.51 grams of glycine with formula C₂H5O2N.

Learn more about number of atoms at: https://brainly.com/question/8834373

#SPJ1

Balance the following reactions
a) Ca (s) + H₂O (1)→ Ca(OH)2 (aq) + H₂ (g)
b) Al2O3 (s) + C(s) + Cl₂ (g) → AICI3 (s) + CO (g)
c) FeCl3 (aq) + H₂S (g) → Fe2S3 (s) + HCI (aq)
d) CaCO3 (s) + HCI (aq) → Ca Cl₂ (aq) + CO2 (g) + H₂O (1)

Answers

Answer:

a) Ca (s) + 2 H₂O (l) ---> Ca(OH)₂ (aq) + H₂ (g)

b) Al₂O₃ (s) + 3 C (s) + 3 Cl₂ (g) --->  2 AICI₃ (s) + 3 CO (g)

c) 2 FeCl₃ (aq) + 3 H₂S (g) ---> Fe₂S₃ (s) + 6 HCI (aq)

d) CaCO₃ (s) + 2 HCI (aq) ---> CaCl₂ (aq) + CO₂ (g) + H₂O (l)

Explanation:

For an equation to be balanced, there must be an equal amount of each type of atom on both sides of the reaction. The reactants are on the left side and the products are on the right side.

a) ------------------------------------------------------------------------------------------------------

The unbalanced equation:

Ca (s) + H₂O (l) ---> Ca(OH)₂ (aq) + H₂ (g)

Reactants: 1 calcium, 2 hydrogen, 1 oxygen

Products: 1 calcium, 4 hydrogen, 2 oxygen

The balanced equation:

Ca (s) + 2 H₂O (l) ---> Ca(OH)₂ (aq) + H₂ (g)

Reactants: 1 calcium, 4 hydrogen, 2 oxygen

Products: 1 calcium, 4 hydrogen, 2 oxygen

b) ------------------------------------------------------------------------------------------------------

The unbalanced equation:

Al₂O₃ (s) + C (s) + Cl₂ (g) --->  AICI₃ (s) + CO (g)

Reactants: 2 aluminum, 3 oxygen, 1 carbon, 2 chlorine

Products: 1 aluminum, 1 oxygen, 1 carbon, 3 chlorine

The balanced equation:

Al₂O₃ (s) + 3 C (s) + 3 Cl₂ (g) --->  2 AICI₃ (s) + 3 CO (g)

Reactants: 2 aluminum, 3 oxygen, 3 carbon, 6 chlorine

Products: 2 aluminum, 3 oxygen, 3 carbon, 6 chlorine

c) ------------------------------------------------------------------------------------------------------

The unbalanced equation:

FeCl₃ (aq) + H₂S (g) ---> Fe₂S₃ (s) + HCI (aq)

Reactants: 1 iron, 3 chlorine, 2 hydrogen, 1 sulfur

Products: 2 iron, 1 chlorine, 1 hydrogen, 3 sulfur

The balanced equation:

2 FeCl₃ (aq) + 3 H₂S (g) ---> Fe₂S₃ (s) + 6 HCI (aq)

Reactants: 2 iron, 6 chlorine, 6 hydrogen, 3 sulfur

Products: 2 iron, 6 chlorine, 6 chlorine, 3 sulfur

d) ------------------------------------------------------------------------------------------------------

The unbalanced equation:

CaCO₃ (s) + HCI (aq) ---> CaCl₂ (aq) + CO₂ (g) + H₂O (l)

Reactants: 1 calcium, 1 carbon, 3 oxygen, 1 hydrogen, 1 chlorine

Products: 1 calcium, 1 carbon, 3 oxygen, 2 hydrogen, 2 chlorine

The balanced equation:

CaCO₃ (s) + 2 HCI (aq) ---> CaCl₂ (aq) + CO₂ (g) + H₂O (l)

Reactants: 1 calcium, 1 carbon, 3 oxygen, 2 hydrogen, 2 chlorine

Products: 1 calcium, 1 carbon, 3 oxygen, 2 hydrogen, 2 chlorine

what are the factors affecting qualitative analysis in chemistry​

Answers

Answer:

Techniques and Tests

Qualitative analysis typically measures changes in color, melting point, odor, reactivity, radioactivity, boiling point, bubble production, and precipitation.

How many moles of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas?

Answers

Taking into account the reaction stoichiometry, 340.0 moles  of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

Reaction stoichiometry

In first place, the balanced reaction is:

CO₂ + 4 H₄  → CH₄ + 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

CO₂: 1 moleH₄: 4 moles   CH₄: 1 moleH₂O: 2 moles

Moles of CH₄ formed

The following rule of three can be applied: if by reaction stoichiometry 1 mole of CO₂ form 4 moles of CH₄, 85.1 moles of CO₂ form how many moles of CH₄?

[tex]moles of CH_{4} =\frac{85.1 moles of CO_{2}x4 moles of CH_{4} }{1 moles of CO_{2}}[/tex]

moles of CH₄= 340.4 moles

Then, 340.0 moles  of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

Other Questions
Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(16) cos(16) Remember to use a degree symbol. (b) 2 sin(40) cos(40) Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) tan(0) -- In class, we discussed the characteristics of different terrestrial biomes. Given this, what do you think is the relationship between biomes and species diversity? Biomes that are warm and dry do not support organisms at any trophic level because the conditions are too harsh. These biomes have no trophic complexity O Biomes with cold, dry climates better support quaternary consumers; this is why we tend to see large apex predators in these regions Biomes with warm, wet climates support primary producers, and in turn are able to support greater species diversity and trophic complexity. O Cold, wet biomes support some of the most unique life on earth, and therefore have high species diversity. one of the reasons for using a predetermined manufacturing overhead rate is that it smooths out seasonal costs over the entire accounting period.True False need help with all 3 questions You ask Mrs. Langan whether or not she has ever brought her dog, Rex, to the office before. She replies that she has, once, two years ago. Mrs. Langans response is called A. her message. C. a reference point. B. feedback. D. tact. a liquid-filled tube called a manometer can be used to measure the pressure inside a container by comparing it to the atmospheric pressure and measuring the height of the liquid. Such a device (filled with mercury) is shown in the figure, measuring the pressure inside a jar of peanuts. The mercury level on the side of the manometer which is open to the air is 20.6 cm lower than on the side connected to the jar.(a) Fine the gauge pressure in the jar, in units of Pa. Assume the density of the mercury is 13.5 g/cm3,(b) Find the absolute pressure in the jar in units of Pa. Using the map posted below, which areas of the ocean are absorbing more CO2 from the air? Choose all that apply.Question 1 options:cold northern oceanswarm equatorial oceanscold southern oceans If we have a set of Poisson probabilities and we know that p(8)-p(9), what is the mean number of observations per unit time?5678910 5. At a very high temperature, manganese is isolated from its ore, manganomanganic oxide, via the following balanced equation: 3 M0,0 (5) + 8 Al(s) -> 4 ALO3(s) + 9 Mn(s) How many grams of manganesc are liberated (are produced) from 54. 8 molcs of M030. How many moles of aluminum oxide are made if 3580 g of manganomanganic oxide are consumed? What is the source of electrons at Complex II (Succinate-Q-reductase)?a. NADH from the citric acid cycle and glycolysisb. NAD+ from conversion of pyruvate to lactatec. FADH2 from the citric acid cycle the boiling point of chloroform (chcl3) is 61.7c. the enthalpy of vaporization is 31.4 kj/mol. calculate the entropy of vaporization. help Use the net to find the surface area of the regular pyramid.Number only. No Units Write your answer as a decimal most biosurveillance programs have a geographic information system (gis) component.T/F in vienna, there is a ferris wheel designed so that the passengers ride in a standing position. if one of the passengers were standing on a bathroom scale, the scale would read lowest at The pH of a 0.19 M solution of acid HCN is found to be 5.02. What is the Ka of the acid? The equation described by the Ka value is HCN(aq)+H2O(l)CN(aq)+H3O+(aq) Report your answer with two significant figures. true or false the contains method of our binary search tree examines every node in the tree before returning a result of false The organizational department that is in charge of finding, screening, and negotiating prices with suppliers is typically called _______A) Reverse logisticsB) LogisticsC) WarehousingD) ProcurementE) Distribution publicity is considered to be integral to which part of the promotional mix? multiple choice question. A. personal selling B. direct marketingC. public relations D. advertising analyze the parts of the word intermolecular and define intermolecular forces of attraction. Calculate the pOH of a 7. 68x10-7 M HCl solution. pOH = (round to 3 sig figs)