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4 April, 23:24

What is the number of moles in 0.025 g (NH4) 2Cr2O7?

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  1. 4 April, 23:52
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    We are asked to calculate the number of moles in a given mass of a substance. To be able to calculate it, we need the molar mass of the substance. For (NH4) 2Cr2O7, the molar mass would be 252.07 g/mol. We calculate as follows:

    0.025 g (NH4) 2Cr2O7 (1 mol / 252.07 g) = 0.0001 mol (NH4) 2Cr2O7

    Hope this answers the question. Have a nice day.
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