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11 August, 22:08

What is the molarity of 62grams of ammonium in 5liters of water?

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  1. 12 August, 01:40
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    First we need to find how many moles of ammonium weigh 62 grams.

    Molar mass of NH4 = (14.0) + (4*1.0) grams

    or 18.0 grams/mole

    62 (g) / 18 (g/mole) = 3.444 ... moles of NH4

    If it is dissolved in 5 litres of water, the concentration will be 3.444moles/5L

    or 0.6888 M.
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