Question

Find the number of atoms present in 3.42g if C12H22O11

Answer 1

Answer:

6.022×10^21

Explanation:

molar mass(C12H22O11)=342

since,Mole=weight/molar mass

and given

weight(C12H22O11)=3.42

since weight/molar mass=3.42/342

sonce number of moles=3.42/342

=10^-2

and now

1mole=6.022×10^23atoms

since by unitary method

10^-2moles=(6.022×10^23)(10^-2)ato.s

which is equal to

=6.022×10^21 atoms