GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which conversion factor should be used to solve the following, “How many moles of argon atoms are present in 11.2 L of argon gas at STP?” What is the correct answer for the number of moles of argon at STP?
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1 mol = 22.4 L, 0.5 mols
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1 mol = 39.95 g, 6.28 g
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1 mol = 6.02x1023 atoms, 1.86 X 10-23
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More than 1
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Explanation:
Detailed explanation-1: -Using the current recommended STP values of 0∘C and 100 kPa, 11.2 L of Ar atoms contain 0.493 mol Ar .
Detailed explanation-2: -11.2 L of a gas at STP weighs 14 g.
Detailed explanation-3: -∴ Moles present in 11.2 litres of CO2 at S.T.P is 0.5 mol.
Detailed explanation-4: -The number of argon atoms in 1 liter of argon gas at standard conditions is 3.43 1025.
There is 1 question to complete.