Chemistry, 18.03.2020 20:05 Jadaaaaaaan

Determine the volume of SO2 (at STP) formed from the reaction of 96.7 g of FeS2 and 55.0 L of O2 (at 398 K and 1.20 atm). The molar mass of FeS2 is 119.99 g/mol. 4 FeS2(s) + 11 O2(g) → 2 Fe2O3(s) + 8 SO2(g)

Answers: 3

Show answers

Answers

Answer from: tbair5417

The volume of SO₂ formed from the reaction at STP is 32.92 L

From the question,

We are to determine the volume of SO₂ formed from the reaction

The given balanced chemical equation for the reaction is

4FeS₂(s) + 11O₂(g) → 2Fe₂O₃(s) + 8SO₂(g)

This means,

4 moles of FeS₂ reacts with 11 moles of oxygen to produce 2 moles of Fe₂O₃ and 8 moles of SO₂

First, we will determine the number of moles of each reactant present

For FeS₂

Mass = 96.7 g

From the formula

$Number\ of\ moles =\frac{Mass}{Molar\ mass}$

Molar mass of FeS₂ = 119.99 g/mol

∴ Number of moles of FeS₂ present = $\frac{96.7}{119.99}$

Number of moles of FeS₂ present = 0.8059 mole

For O₂

Using the formula

PV = nRT

$n =\frac{PV}{RT}$

Putting the given parameters into the formula, we get

$n = \frac{1.2 \times 55.0}{0.08206 \times 398}$

$n = \frac{66}{32.65988}$

n = 2.0208 moles

Since,

4 moles of FeS₂ reacts with 11 moles of oxygen to produce 8 moles of SO₂

Then,

$\frac{2.0208 \times 4}{11}$ moles of FeS₂ will react with 2.0208 moles of oxygen to produce $\frac{2.0208 \times 4}{11} \times 2$ moles of SO₂

That is,

0.7348 moles of FeS₂ will react with 2.0208 moles of oxygen to produce 1.4697 moles of SO₂

∴ Number of moles of SO₂ formed is 1.4697 moles

Now for the volume of SO₂ formed at STP

Since

1 mole of a gas has a volume of 22.4 L at STP

Then

1.4697 moles of the SO₂ will have a volume of 1.4697 × 22.4 L

1.4697 × 22.4 L = 32.92L

Hence, the volume of SO₂ formed from the reaction at STP is 32.92 L

Learn more here: link

Answer from: deedee363

32.9 Liters

Explanation:

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}$

1. moles of $FeS_2=\frac{96.7g}{119.99g/mol}=0.806mol$

2. moles of O_2

PV=nRT

P = pressure of the gas = 1.20 atm

R = Gas constant = $0.0821\text{ L atm }mol^{-1}K^{-1}$

T = temperature of the gas = 398K

$1.20\times 55.0=n\times 0.0821\times 398$

n=2.02

$4FeS_2(s)+11O_2(g)\rightarrow 2Fe_2O_3(s)+8SO_2(g)$

According to stoichiometry:

11 moles of oxygen reacts with 4 moles of FeS_2

Thus 2.02 moles of oxygen reacts with = $\frac{4}{11}\times 2.02=0.73$ moles of FeS_2

Thus oxygen acts as limiting reagent and FeS_2 is excess reagent.

As 11 moles of oxygen gives = 8 moles of SO_2

2.02 moles of oxygen gives = $\frac{8}{11}\times 2.02=1.47$ moles of SO_2

PV=nRT

P = pressure of the gas = 1 atm (at STP)

R = Gas constant = $0.0821\text{ L atm }mol^{-1}K^{-1}$

T = temperature of the gas = 273K (at STP)

$1\times V=1.47\times 0.0821\times 273$

V=32.9L

Thus volume of SO_2 (at STP) formed from the reaction is 32.9 L

Answer from: Quest

The answer to this problem is. 67

Answer from: Quest

The answer is d.potassium

Another question on Chemistry

Chemistry, 23.06.2019 06:00

Complete the sentences to best explain the ranking.match the words below to the appropriate blanks in the sentences.a less polar bondhigher molar massion-dipole forcesstronger intermolecular forcesdipole-dipole forcesdispersion forceshydrogen bonding1. h2s and h2se exhibit the following intermolecular forces:.2. therefore, when comparing h2s and h2se the one with a has a higher boiling point .3. the strongest intermolecular force exhibited by h2o is . therefore, when comparing h2se and h2o the one with has a higher boiling point.

Answers: 1

Answer

Chemistry, 23.06.2019 06:00

Nthis lab, you will do experiments to identify types of changes. using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments

Answers: 3

Answer

Chemistry, 23.06.2019 06:40

What is the neutralization reaction

Answers: 2

Answer

Chemistry, 23.06.2019 10:30

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 3.75 mol fe and 8.70 mol nio(oh) react?

Answers: 1

Answer

You know the right answer?

Determine the volume of SO2 (at STP) formed from the reaction of 96.7 g of FeS2 and 55.0 L of O2 (at...

Questions