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The mass of 112 cm2 of methane at stp |
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Answer» : CH4 : molecular weight = 16So one MOLE of methane weighs 16 gm.At STP, one mole of an ideal GAS occupies 22.4 LITRES. 112 cm³ of methane contains : 112 / 22,400 = 0.005 MOLES. mass of the gas = 0.005 * 16 gm = 0.080 gm = 80 milligrams |
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