How many mol of hydrogen in 2.7 mol of caffeine?

Answer : The number of moles of hydrogen in 2.7 mole of caffeine are 27 moles.

Explanation : Given,

Moles of caffeine = 2.7 mole

The molecular formula of caffeine is,

In the molecule , there are 8 moles of carbon, 10 moles of hydrogen, 4 moles of nitrogen and 2 moles of oxygen.

As, 1 mole of contains 10 moles of hydrogen

So, 2.7 moles of contains moles of hydrogen

Therefore, the number of moles of hydrogen in 2.7 mole of caffeine are 27 moles.