Question

Calculate the number of moles and molecules present in 1.1*10^-4 kg co2

Answer 1

given....
atomic mass of carbon =12.0107u
atomic mass of oxygen= 2 X 16 u =32u
molar mass of co2. = 44.01g per mole
no . of moles = given mass per molar mass
1.1 X 10^-⁴ X 1000\44.01
=
0.002499....mole....

hope it is right.....ans ........

Answer 2

atomic mass of carbon =12.0107u

atomic mass of oxygen= 2 X 16 u =32u

molar mass of co2. = 44.01g per mole

no . of moles = given mass per molar mass

1.1 X 10^-⁴ X 1000\44.01

=

0.002499....mole....