Question

What is the mass of:(a) 1 mole of nitrogen atoms ?(b) 4 moles of aluminium atoms (Atomic mass of aluminium = 27) ? *​

Answer 1

Answer:

(a) 14g (b) 108g

Explanation:

(a) N -> 14 x 1 = 14g

(b) Al -> 27 x 4 = 108g

Answer 2

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What is the mass of 1 mole of nitrogen atoms?

1 mole of nitrogen atoms is equivalent to the gram atomic mass of nitrogen. Therefore, 1 mole of nitrogen atoms contains 14 g.

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What is the mass of4 moles of aluminium atoms (Atomic mass of aluminium = 27) ?

4 moles of aluminium atoms. Mass of 1 mole of aluminium atoms = 27 g. Mass of 4 moles of aluminium atoms = (27 x 4) = 108 g.

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