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1 March, 19:11

How many kilograms are in 4 moles of Na2CO3?

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  1. 1 March, 19:34
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    First you need to find the amount of mass of Na2CO3 in one moles

    (Use periodic chart)

    Na = 22.99 x 2 = 45.98

    C = 12.01

    O = 16.00 x 4 = 64.00

    Add the molar masses together to get 121.99

    To find how many grams are in 4 moles, times 121.99 by 4

    This gives you 487.96

    But the questions asks for the answer to be in kilograms nor grams, to change into kilograms divide by 1000

    This gets you the answer: 0.49 kg
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