A 15.8 g sample contains 3.60 g F, 4.90 g H, and 7.30 g C. What is the percent composition of hydrogen in this sample?

The correct answer is "32%".

Explanation:

The given values:

Weight of H,

= 4.9 g

Weight of sample,

= 15.8 g

Now,

The weight percentage of C will be:

=

By substituting the values, we get

=

=

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it