Chapter 24, Problem 45R

To determine

To calculate: Mass of tin in the trophy.

Answer to Problem 45R

Mass of tin in the trophy = $\underset{\_}{142.8\text{ g}}$ .

Explanation of Solution

Given info:

Mass of bronze trophy = $952\text{ g}$

Percentage of copper = $\text{85\%}$

Calculation:

Percentage of tin in the bronze trophy = $100-85=15\%$

Mass of tin in the trophy is calculated as:

  $\begin{array}{l}15\%\text{ of 952 g}\\ \text{=}\frac{\text{15}}{100}\text{ of 952 g}\\ \text{= 142}\text{.8 g}\end{array}$

Conclusion:

Mass of tin in the trophy = $\underset{\_}{142.8\text{ g}}$ .