Question

Calculate the formula mass /molecular mass of the following and state one point of difference between
formula mass and molecular mass.
a) Glucose
b) Magnesium Chloride

Answer 1

Answer:

a) mass of glucose is 180.15g/ml

molecular mass of glucose is 180.gm/mol

b)mass of magnesium chloride is 95.g/ml

mass of magnesium chloride is 95u

Explanation:

a) molecular mass of }=sum of the atomic mass of

C6H12O6

= 12×6+12×1.008+6×16

=180

b) molecular mass of

magnesium chloride}= 35.55×2+25

=95u.