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16 August, 12:38

A sample of sodium hydroxide (NaOH) has a mass of 160.0 g. The molar mass of NaOH is 40.00 g/mol. How many moles of NaOH does this sample contain?

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  1. 16 August, 12:46
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    For the answer to the question above, the correct answer is 4.000 sample of sodium hydroxide (NaOH) has a mass of 160.0 g which is equal to 4 moles of NaOH. TO calculate this, we use the relation of the molar mass given.

    I'll show my solutions below.

    160.0 g NaOh (1 mol NaOH / 40.0 g NaOH) = 4.000 mol NaOH
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