Calculate the number H atom in 1 mole of NH3.

Simple Mole Concept of Gases Notes

• Molar volume of any gas at STP = 22.4 dm³ mol^-1

• 1 mole of gas has a volume of 22.4 dm³ at s.t.p.
• At s.t.p, volume of gas (dm³) = number of mole X 22.4 dm³ mol^-1
• 1 mole of gas has a volume of 24.0 dm³ at room temperature.
• At room temperature, volume of gas (dm³) = number of mole X 24.0 dm³ mol^-1

Calculate the number of bromide ions in 2 moles of CaBr2