Question

The number of molecules of co2 in 4.4g of the gas STP?

Answer 1

molar mass of CO2 = 44g

no of moles in 4.4 g of CO2 = 0.1 mole

no of molecules in 0.1 mole = 0.1 ×6.022×10^23

= 6.022 × 10^22