Question

The average cup of coffee contains about 125 mg of caffeine, C3H10N402. Caffeine is also found in tea, colas, and headache remedies.

How many atoms of hydrogen are in 1.0 mol of caffeine?

Answer 1

Answer:

ten atoms of hydrogen are present in one mole of caffeine.

Explanation:

Molecular formula of caffiene is given which is C3H10N4O2. It clearly shows that ten atoms of hydrogen are present. One mole is amount equal to one molecular weight of a molecule which is derived from molecular formula. So as moecular formula has ten atoms of hydrogen, one mole of caffeine has 10 atoms of hydrogen.