Question

calculate the number of atoms present in
1. 52 moles of He
2. 52 a m u of He
3. 52 g of He
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Answer 1

$\huge\red{Answer}$

1. Number of atoms a in 52 moles of He= 52× Avogadro's number

$52\times 6.022 \times {10}^{23}$

2.Number of of atoms in 52 AMU of he= 52×Avogadro's no.

$52 \times 6.022 \times {10}^{23}$

3. number number of atoms in 52 gram of He= 52÷mass no. ×Avogadro's number

$16 \times 6.022 \times {10}^{23}$