Question

Calculate the no. of copper atoms in 0.3175 gram of Copper?​

Answer 1

Answer:

how with a calculater ....

Answer 2

Answer:

mass of 1 Cu atom = 1.055×10^-22 g

number of Cu atoms in 0.3175g of Copper = 1 / (1.055×10^-22) × 0.3175 = 0.3 × 10^22 = 3 × 10^21

Explanation:

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