A sample of pure lithium nitrate contains 10.1% lithium by mass.What is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?
A)5.05%
B)10.1%
C)20.2%
D)40.4%

Question

Quizplus · Accepted Answer

Since the percentage of lithium by mass is constant, doubling the mass of the sample will not affect the percentage of lithium by mass. Therefore, the percentage of lithium by mass in the second sample will also be 10.1%.

A Sample of Pure Lithium Nitrate Contains 10