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23 May, 21:45

How many moles of nitrogen are in 66.0 g of nitrous oxide?

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  1. 23 May, 22:13
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    Rmm of N20 = (14X2) + 16 = 44

    Percentage by mass of Nitrogen in N20 = 28/44x100 = 63.64

    66x0.6634 = 43.7844g of Nitrogen in 66g of N20

    Moles = Mass/Mr = 43.7844/14 = 3.13 moles
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