Question

an atom of copper has mass of 1.0625×10^-22g.How many atoms of copper are there in 16 g?​

Answer 1

Answer:

give mass of 1 atom =

1.0625 × 10^-22

no. of atoms = x in 16 g

by unitary method

1 atom = 1.0625 × 10^-22g

x atom = 16g

x = 16 ÷ (1.0625 × 10^-22)

x = 15.05 ×10^22

x = 1.505 ×10^22

Explanation:

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