calculate the number of molecules in 1ml of O2 at ntp
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At STP, 1mole of gas occupies 22.4L of volume
Molecular mass=32 g/mol
This means 32g of O2 occupies 22.4 L 1mL of volume occupied= 1/22400 mol = 4.46 x 10^-5 mol 1 mol=6.022 x 10^23 (Avogadro number) 1mL of volume=4.46 x 10^-5 x 6.022 x10^23 molecules 1mL of volume = 2.685 x 10^19
This means 32g of O2 occupies 22.4 L 1mL of volume occupied= 1/22400 mol = 4.46 x 10^-5 mol 1 mol=6.022 x 10^23 (Avogadro number) 1mL of volume=4.46 x 10^-5 x 6.022 x10^23 molecules 1mL of volume = 2.685 x 10^19
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