Question

The percent composition of hydrogen in a compound is 3.80% How many grams of hydrogen are in 124 g of the compound?

Answer 1

Hello!

The answer is: 4.71 grams of Hydrogen

Why?

From the statement, we know that for the studied compound, which has a mass of 124 g, we have that 3.80% is Hydrogen.

So, to find how many grams of Hydrogen is in 124 grams of the compound, we need to do the same calculation:

First, we need to convert the 3.80% percent in a real number, we can do it by dividing the percent into 100:

$\frac{3.8}{100} =0.038$

Then,

$0.0038*124g=4.71 g$

So, there are 4.71 grams of Hydrogen in 124 grams of the compound.

Have a nice day!