Question

2.2 g Of Co2 is equal to how many moles?

Answer 1

let n=m/M

Mr CO2= 12+(16×2)

             =44g/mol

m = 2.2g

∴n(moles) = 2.2/44

                  =0.05moles

Answer 2

Given: 2.2 grams of carbon dioxide.

To find: We have to find the number of moles.

Solution:

To determine the number of moles we have to follow the below steps-

The chemical formula of carbon dioxide is $CO_2$.

The atomic weight of C is 12 and the atomic weight of oxygen is 16.

Thus the molecular weight of water is 12+16×2=44 gram.

Thus 44 grams of water occupy 1 mole.

So, 2.2 grams of water will occupy 2.2/44=0.05 moles.

Thus, the number of moles in 2.2 of water is 0.05.