Question

Which of the following statements about moles is correct?
A mole of Cu atoms has the same number of atoms as a mole of He atoms.
A mole is 6.02 x 1024
There are more atoms in a mole of carbon than in a mole of helium.
A mole is 6.2 x 1022

Answer 1

the answer is A. A mole of Cu has the same number of atoms as a mole of He atoms

Answer 2

Answer: A mole of Cu atoms has the same number of atoms as a mole of He atoms.

Explanation:

In one mole of atoms there are $6.02\times 10^{23}$ numbers of atoms. Given by Amedeo Avogadro. Also know as Avogadro number. It remain constant for every 1 mole of substance.

$N_A=6.02\times 10^{23} atoms$

$1 mole=6.02\times 10^{23} \text{atoms or molecule or ions or particles}$

The correct statement is"A mole of Cu atoms has the same number of atoms as a mole of He atoms."