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3 May, 00:02

How many moles of Na2CO3 are in 100.0ml of a 2.0M solution?

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  1. 3 May, 00:21
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    M = moles of solute / liters of solution

    2.00 M = x / 10.0 L

    x = 20.0 mol

    Suppose the molarity was listed as 2.0 M (two sig figs). How to display the answer? Like this:

    20. mol
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