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this means that the 12g of oxygen gas have 12mol of oxygen gas
prachi5774:
i cant understand your answer
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(a) Molar mass of O2 = 2 x 16 = 32 g
Number of moles in 12g O2 = Given mass/ Molar mass = 12/32 = 0.375 mole
(b) Molar mass of H2O = 2 x 1 + 16 = 18g
Number of moles in 20 g H2O = 20/18 = 1.11mole
(c) Molar mass of CO2 = 12 + 16 x 2 = 12 + 32 = 44g
Number of moles in 22g CO2 = 22/44 = 0.5mole
Number of moles in 12g O2 = Given mass/ Molar mass = 12/32 = 0.375 mole
(b) Molar mass of H2O = 2 x 1 + 16 = 18g
Number of moles in 20 g H2O = 20/18 = 1.11mole
(c) Molar mass of CO2 = 12 + 16 x 2 = 12 + 32 = 44g
Number of moles in 22g CO2 = 22/44 = 0.5mole
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