Chapter 21, Problem 21.176QP

Interpretation Introduction

Interpretation:

The mass percentage of ${\text{MgCO}}_{\text{3}}$ in the rock has to be calculated.

Concept introduction:

Ideal gas is the most usually used form of the ideal gas equation, which describes the relationship among the four variables $\text{P, V, n, and T}\text{.}$  An ideal gas is a hypothetical sample of gas whose pressure-volume-temperature behavior is predicted accurately by the ideal gas equation.

$\text{PV = nRT}$

The mass percentage of a compound can be calculated with the calculated mass of the compound to the total mass of the compound.

$\text{Mass}\text{percent(in}\text{\%)=}\frac{\text{Mass}\text{of}\text{compound(in}\text{g)}}{\text{Total}\text{mass(in}\text{g)}}$