2. For the following reaction, calculate how many moles of each product are formed when 0.356
moles of Pbs completely react. Assume there is an excess of oxygen.
2PbS(s) + 302(g) → 2Pb0(s) + 2802(9)

Answer :

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Answer:

[tex]\large \boxed{\text{0.356 mol each of PbO and SO}_{2}}}[/tex]  

Explanation:

            2PbS + 3O₂ ⟶ 2PbO + 2SO₂

n/mol:  0.356  

1. Moles of PbO

2 mol of PbO are formed from 2 mol of PbS

[tex]\text{Moles of PbO} = \text{0.356 mol PbS} \times \dfrac{\text{2 mol PbO}}{\text{2 mol PbS}} = \textbf{0.356 mol PbO}[/tex]

2. Moles of SO₂

2 mol of SO₂ are formed from 2 mol of PbS

[tex]\text{Moles of SO}_{2} = \text{0.356 mol PbS} \times \dfrac{\text{2 mol SO}_{2}}{\text{2 mol PbS}} = \textbf{0.356 mol SO}_{2}\\\\\text{The reaction produces } \large\boxed{\textbf{0.356 mol of PbO and 0.356 mol of SO}_{2}}[/tex]

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