Question

Calculate the number of H atoms in 0.185 mole C6H14O.

Answer 1

number of mole of H atoms = 0.185×14=2.59 mole
=>number of H atoms = 6.02×10^23×2.59=1.56×10^24(atom)

Answer 2

1.56 × 10²⁴

Explanation:

In 1 mole of C₆H₁₄O there are 14 moles of atoms of hydrogen. In 0.185 moles of C₆H₁₄O, the moles of atoms of hydrogen are:

0.185 mol C₆H₁₄O × (14 mol H/1 mol C₆H₁₄O) = 2.59 mol H

In 1 mole of atoms of hydrogen, there are 6.02 × 10²³ atoms of hydrogen (Avogadr's number). In 2.59 moles of atoms of hydrogen, the number of atoms of hydrogen is:

2.59 mol H × (6.02 × 10²³ atoms H/ 1 mol H) = 1.56 × 10²⁴ atoms H

There are 1.56 × 10²⁴ atoms of hydrogen.