Question

A 1.00 g sample of naphthalene (C10H8) contains 0.562 g of hydrogen. What is the mass percent of carbon in the compound?

A.
10.079%
B.
12.01%
C.
43.8%
D.
50.02%
E.
56.2%

Answer 1

43.8%

Step-by-step explanation:

Hydrogen+Carbon=1.00g

so carbon =1-0.562=0.438g

Mass percent=(0.438÷1)×100%

=43.8%