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प्रश्न
What is the mass of 56 cm3 of carbon monoxide at STP?
(C = 12 ,O = 16)
उत्तर
22400 cm3 of CO has mass = 28 g
∴ 56 cm3 of CO at S.T.P. weigh =`28/22400 xx 56`
= 0.07 g
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