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How many molecules are in 0.400 moles of N2
O5?
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1 mol has 6.02E23 so 0.4 mol will have .....
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Question 19 (2 points)
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If a mole of hydrogen gas (H2) contains 6.02 x 10^23 molecules, how many molecules are there in 10.0 moles of hydrogen gas?
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