Question

calculate the number of moles in 17g of H2O2​

Answer 1

Answer:

Molecular mass of H2O2= (2 × 1) + (2 × 16) = 34 gm. Since 34 gm of hydrogen peroxide (H2O2) = 1 mole. Hence 17 gm of H2O2 = 1/ 34 ×17 = 1/ 2 = 0.5moles

Answer 2

Answer:

Atomic mass of H = 1

Atomic mass of O = 16

Molecular mass of H2O2= 2 × 1 + 2 × 16 = 34 gm

Since 34 gm of hydrogen peroxide H2O2 = 1 mole

Hence 17 gm of H2O2 = 1/ 34 ×17 = 1/ 2 =0.5moles