Question

Calculate the number of moles molecules and total number of atoms present in 1.1×10^-3 kg of 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....

Answer 2

1.5 ×10^-12 is the answer