Question

calculate the molecules present in 22g of Co2.​

Answer 1

Answer:

The mass number of CO2 = 2x16 + 12 =44

so one mole of C02 has a mass of 44g.

Half moles of CO2 weighs 1/2 x 44 = 22g.

The number of moles in 22g of CO2 = 22/44 = 0.5.

One mole always contains the same number of particles which is given by avagadro's number.

So molecules = 1/2 × Nₐ

Answer 2

The mass number of CO2 = 2x16 + 12 =44 so one mole of C02 has a mass of 44g.

Two moles of CO2 weighs 2 x 44 = 88g.

The number of moles in 22g of CO2 = 22/44 = 0.5.