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05-11-2020
Chemistry

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A sample of N2H4 has a mass of 25g. Identify the numerical quantity that is needed to convert the number of grams of N2H4 to the number of moles of N2H4.

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ibiscollingwood ibiscollingwood

09-11-2020

Answer:

Molecular mass

Explanation:

25g of N2H4 is given

in order to find number of moles we need Molecular mass

Molecular mass of N2H4 = 2*14 + 4*1= 32g

No of moles = given mass /molar mass = 25/32 = 0.78moles

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