A sample of pure lithium carbonate contains 18.8.4% lithium by mass.What is the % lithium by mass in a sample of pure lithium carbonate that has twice the mass of the first sample?
A)9)40%
B)18.8%
C)37.6%
D)75.2%

Question

Quizplus · Accepted Answer

The percentage of lithium by mass in a compound does not change with the amount of the sample. Therefore, even if the mass of the sample is doubled, the percentage of lithium remains the same at 18.8%.

A Sample of Pure Lithium Carbonate Contains 18