Chapter 6, Problem 6.85SP

(a)

Interpretation Introduction

Interpretation:

The percent composition of malachite ${\text{Cu}}_{\text{2}}{\left(\text{OH}\right)}_{\text{2}}{\text{CO}}_{\text{3}}$ has to be given.

Concept Introduction:

Percent composition:

Percent composition is providing the mass percent of each element present in the compound.

Mass percentage of the element can be calculated using given formula,

Mass percentage of the element = $\frac{\text{mass}\text{of}\text{the}\text{element}}{\text{sample}\text{mass}}\text{×}\text{100}$

(b)

Interpretation Introduction

Interpretation:

The percent composition of acetaminophen ${\text{C}}_8{H}_{9}N{O}_2$ has to be given.

Concept Introduction:

Percent composition:

Percent composition is providing the mass percent of each element present in the compound.

Mass percentage of the element can be calculated using given formula,

Mass percentage of the element = $\frac{\text{mass}\text{of}\text{the}\text{element}}{\text{sample}\text{mass}}\text{×}\text{100}$

(c)

Interpretation Introduction

Interpretation:

The percent composition of Prussian blue ${\text{Fe}}_{\text{4}}{{\text{[Fe(CN)}}_{\text{6}}\text{]}}_{\text{3}}$ has to be given.

Concept Introduction:

Percent composition:

Percent composition is providing the mass percent of each element present in the compound.

Mass percentage of the element can be calculated using given formula,

Mass percentage of the element = $\frac{\text{mass}\text{of}\text{the}\text{element}}{\text{sample}\text{mass}}\text{×}\text{100}$