Question

the molecular formula of a compound used for bleaching hair is H2O to calculate mass of the compound that would contain 2.5 moles and also calculate number of moles of the compound that was exactly with 30 g​

Answer 1

A) 45 g

B) 1.66 moles

Explanation:

According to the question, H₂O is the compound that is used in bleaching hair.

We know that,

A) 1 mole = 18 g

∴ 2.5 mole = 18 × 2.5

                  = 45 g of H₂O

B) 1 mole = 18 g

   30 g H₂O = 30/18 moles

                     = 1.67 moles