Question

Calculate the number of molecules present in 34.2g suger cane (c12 h22 o11)

Answer 1

Answer:

molar mass =12×12+1×22+16×11=342gm

mass given =34.2gm

N=?

Avogadro number=6.023×10^23

n(number of moles)=W(given mass)/Mo(Molar mass)=N(number of molecules)/No(Avogadro number)

34.2/342=N/6.023×10^23

N= 34.2×6.023×10^23/342

N=6.023×10^22