Chapter 14, Problem 14.134P

(a)

Interpretation Introduction

Interpretation:

The mass percent of arsenic in Copper(II) hydrogen arsenite and trimethylarsine have to be calculated.

Concept Introduction:

Mass percent:  It is the ratio of mass of an element in the compound to that of total mass of the compound and multiplied by hundred.

    $\text{Mass}\text{percent}\text{=}\frac{\text{Mass}\text{of}\text{an}\text{element}\text{(g)}}{\text{Total}\text{mass}\text{of}\text{the}\text{compound}\text{(g)}}\text{×}\text{100\%}$

(b)

Interpretation Introduction

Interpretation:

The amount of ${\text{CuHAsO}}_{\text{3}}$ reacts to reach toxic level has to be calculated.

Concept Introduction:

Mass percent:  It is the ratio of mass of an element in the compound to that of total mass of the compound and multiplied by hundred.

    $\text{Mass}\text{percent}\text{=}\frac{\text{Mass}\text{of}\text{an}\text{element}\text{(g)}}{\text{Total}\text{mass}\text{of}\text{the}\text{compound}\text{(g)}}\text{×}\text{100\%}$