Question

How many hydrogen atoms are there in 0.020 moles of C2H5OH?

Answer 1

0.02 moles of ethyl alcohol have 0.12 hydrogen atoms.

Given: 0.020 moles of C2H5OH.

To find The number of hydrogen atoms.

Solution:

There are six hydrogen atoms, two carbon atoms and one oxygen atom are present in one mole of ethyl alcohol.

Thus one-mole ethyl alcohol has 6 hydrogen atoms.

0.02 moles of ethyl alcohol will have

$6 \times 0.02 = 0.12$

Thus 0.02 moles of ethyl alcohol have 0.12 hydrogen atoms.