Question

What is the mass of hydrogen in 5.5 mol of Ca(OH)2?​

Answer 1

12*2*6.022*10^23. Atoms of hydrogen.

Step-by-step explanation:

First of all if u know that 1 molecule of calcium hydroxide contain 2 hydrogen atom and 1 mole of calcium hydroxide contain 6.022*10^23 molecules of calcium hydroxide.

Hence 1 mole of calcium hydroxide contain 2*6.022*10^23 atom of hydrogen.

So 12 mole of calcium hydroxide contain =12*2*6.022*10^23. Atoms of hydrogen.