Question

Calculate the number of moles in 22g of carbon dioxide

Answer 1

Mass of CO2 = 22g

Molecular mass of CO2 = 44g

Number of moles = Mass / molecular mass = 22/44 = 0.5 moles

So, in 22g of CO2 contains 0.5 moles.

Answer 2

$\bold{\red{\huge{\mathcal{Solution}}}}$

$\bold{\boxed{Calculation \:of \:number\: of\: moles.}}$

Given mass if carbon dioxide = 22g

Molar mass of carbon dioxide =

Since,

Atomic mass of C = 12

Atomic mass of O = 16

Molar mass of CO2 = 12 + (16*2)

= 12 + 32

= 44 g/mol.

We know that,

No. Of moles =

Mass given in gram/Molar mass

Therefore,

No. Of moles = 22/44

= 1/2

= 0.5 moles

So, No.Of moles of 22 g of carbon dioxide = 0.5 moles...