GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A sample of methane, CH4, occupies 4.50 dm3 (Liters) at STPHow many moles of this gas are present. (Note:One mole of any gas occupies 22.4 liters at STP)
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2.0
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16
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24
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0.2
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Explanation:
Detailed explanation-1: -At STP of 273.15 K (0°C) and 1 atm, the molar volume of a gas is 22.4 L/mol. So at STP, if you have 22.4 L of CH4, you have one mole of CH4.
Detailed explanation-2: -We are given $4.48 L$ of an ideal gas at STP. Thus, we have to calculate the number of moles of ideal gas that occupies a volume of $4.48 L$. Thus, $4.48 L$ of an ideal gas at STP contains $0.2 mol$ of an ideal gas.
Detailed explanation-3: -44.8 liter, so we will get answer, will be 2 moles.
Detailed explanation-4: -There are about 2 mol of methane present.
There is 1 question to complete.