Chapter 24.2, Problem 14R

To determine

To calculate: Grams of silica and sulfur required to make the given amount of developmental ceramic.

Answer to Problem 14R

Amount of silica required = $\underset{\_}{26.25\text{ g}}$ .

Amount of sulfur required = $\underset{\_}{\text{48}\text{.75 g}}$ .

Explanation of Solution

Given info:

A developmental ceramic is designed to be $35\text{ percent}$ silica and $\text{65 percent}$ sulfur.

  $\text{75 g}$ of this material is needed.

Calculation:

Grams of silica required is calculated as follows:

  $\begin{array}{l}\text{ 35\% of 75 g}\\ \text{=}\frac{35}{100}\text{ of 75 g}\\ \text{= 26}\text{.25 g}\end{array}$

Grams of sulfur required is calculated as follows:

  $\begin{array}{l}\text{ 65\% of 75 g}\\ \text{=}\frac{65}{100}\text{ of 75 g}\\ \text{= 48}\text{.75 g}\end{array}$

Conclusion:

Amount of silica required = $\underset{\_}{26.25\text{ g}}$ .

Amount of sulfur required = $\underset{\_}{\text{48}\text{.75 g}}$ .