Question

What is the percent composition of hydrogen in a compound if the mass of the initial compound is 276 grams and the mass of collected hydrogen after decomposition is 41.4 grams?

A. 6.6%
B. 10.0%
C. 15.0%
D. 21.2%

Answer 1

C - 15 %
$41.4 \div 276grams \times 100\%$
This is the solution