select the correct answer. what is the percent composition of hydrogen in a compound if the mass of the…

select the correct answer. 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%

select the correct answer. 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

Explanation:

Step1: Recall percent - composition formula

Percent composition of an element $=\frac{\text{Mass of the element}}{\text{Mass of the compound}}\times100%$

Step2: Substitute given values

Here, mass of hydrogen $m_{H}=41.4$ grams and mass of the compound $m = 276$ grams. Percent composition of hydrogen $=\frac{41.4}{276}\times100%$ $=\frac{4140}{276}%$ $ = 15.0%$

Answer:

C. 15.0%