Question

How many molecules are present in 936 g of glucose (C6H12O6)?
(The molar mass of glucose = 180.16 g/mol. )

Answer 1

Number of moles glucose:

936 / 180.16 = 5.1953 moles

1 mole --------------- 6.02 x 10²³ molecules
5.1953  moles ----- ?

= 5.1953 * 6.02 x 10²³  / 1

= 3.1275 x 10²⁴ molecules

hope this helps!