Question

How to calculate the mass of 5 moles of nitrogen atoms?

Answer 1

Answer:

for its one mole it is of 28gram. according to mole concept in one mole there is 6.022*10^23 moles are present. so mass of 1 molecule of nitogen gas is 28/(6.022*10^23) gram. solve it and u will get answer.

Answer 2

The mass of given amount of nitrogen atoms is 70 grams

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of nitrogen atoms = 5 moles

Molar mass of nitrogen = 14 g/mol

Putting values in above equation, we get:

$5mol=\frac{\text{Mass of nitrogen}}{14g/mol}\\\\\text{Mass of nitrogen}=(5mol\times 14g/mol)=70g$

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