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प्रश्न
Determine the molecular mass of a gas if 5g of it occupy a volume of 4 L at STP.
उत्तर
4L of a gas at STP has mass = 5g
22.4 L of a gas at STP will has molecular mass = 5 x 22.4 / 4 = 28.
So, the molecular mass of a gas will be 28.
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