Answer: 1.08 x 10^23 atoms
Step-by-step explanation:
To find the no of moles in 35.12g of Au
no. of moles = mass/atomic mass
= 35.12/197
= 0.18 moles
1 mole of Au = 6.02 x 10^23
0.18 moles of Au = 0.18 x 6.02 x 10^23
=1.08 x 10^23 atoms
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