Question

Calculate the number of molecules in 4 g of oxygen.

Answer 1

Answer:

To calculate the number of molecules in 4g of oxygen, we have, Moles of oxygen = 4/32 = 0.125mol, Molecules of oxygen = 0.125 * 6.022 * 10^23 = 7.52 * 10^22.

Answer 2

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Answer in Attachment...