Question

mass of 1 mole of substance is 5.3*10-²³g? what is its molecular mass?​

Answer 1

Answer:

no of moles=mass in grams/molar mass.

no of moles=1

mass in gram=5.3*10^-23

so molar mass= mass in gram/ moles

molar mass=5.3*10^-23/1=5.3*10^-23gram.

Answer 2

Answer:

Mass of 1 mole of a substance= 5.3×10⁻²³ g.

The molecular mass = (Given mass)×(Avogrado number)

= 5.3×10⁻²³×6.022×10²³ = 31.9 = 32g (approx)

HOPE THIS HELPS :D