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23-08-2017
Chemistry

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How many grams of sodium hydroxide are needed to make 500mLs of a 0.125M NaOH solution?

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abhinjis abhinjis

23-08-2017

need 0.500 x 0.125 = 0.0625 moles of NaOH. The molecular weight is 23+16+1 = 40, so 0.0625 x 40 = 2.5 grams will do the trick.

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