Chapter 9.3, Problem 17PP

(a)

Interpretation Introduction

Interpretation: To write the balanced chemical equation for the reaction.

Concept Introduction:

Chemical equation is way of representing the chemical reaction with the help of symbols and formulae.

In a chemical equation:

To the reaction arrow, reactants are always on the left-hand side and products on the right-hand side.

(b)

Interpretation Introduction

Interpretation: To determine the mass of O₂ required to react with 29.9 g of PbS.

  $\text{2PbS}\text{(s)}\text{+3}{\text{O}}_{\text{2}}\text{(g)}\to 2\text{PbO}\text{(s)}\text{+2}{\text{SO}}_{\text{2}}\text{(g)}$

Concept Introduction:

A stoichiometric coefficient of a well-balanced chemical equation tells about the relative relation between moles of reactants used and moles of products formed.

Let’s say we have a chemical reaction as:

  $\text{aA}\text{+bB}\to \text{cC}\text{+}\text{dD}$

If above reaction is well-balanced then,

‘a’ moles of A reacts with ‘b’ moles of B to produce ‘c’ moles of C and ‘d’ moles of D.

(c)

Interpretation Introduction

Interpretation: To determine the mass of SO₂ produced from 65.0 g of PbS.

  $\text{2PbS}\text{(s)}\text{+3}{\text{O}}_{\text{2}}\text{(g)}\to 2\text{PbO}\text{(s)}\text{+2}{\text{SO}}_{\text{2}}\text{(g)}$

Concept Introduction:

A stoichiometric coefficient of a well-balanced chemical equation tells about the relative relation between moles of reactants used and moles of products formed.

Let’s say we have a chemical reaction as:

  $\text{aA}\text{+bB}\to \text{cC}\text{+}\text{dD}$

If above reaction is well-balanced then,

‘a’ moles of A reacts with ‘b’ moles of B to produce ‘c’ moles of C and ‘d’ moles of D.

(d)

Interpretation Introduction

Interpretation: To determine the mass of PbS used to produce 128 g of PbO.

  $\text{2PbS}\text{(s)}\text{+3}{\text{O}}_{\text{2}}\text{(g)}\to 2\text{PbO}\text{(s)}\text{+2}{\text{SO}}_{\text{2}}\text{(g)}$

Concept Introduction:

A stoichiometric coefficient of a well-balanced chemical equation tells about the relative relation between moles of reactants used and moles of products formed.

Let’s say we have a chemical reaction as:

  $\text{aA}\text{+bB}\to \text{cC}\text{+}\text{dD}$

If above reaction is well-balanced then,

‘a’ moles of A reacts with ‘b’ moles of B to produce ‘c’ moles of C and ‘d’ moles of D.