Science, asked by shreyanshshukla9451, 6 hours ago

5. Calculate the number of gratoms in:
(a) 40 g Ca
(b) 1.6x 1023 He atoms

Answers

Answered by prithunarang

1

Answer:

Explanation:

gram atoms= moles=weight/molar weight

a/ 1

b/1.6*1023/6.023*1023=0.2 approx

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