Question

19.7Kg of gold was recovered from a smuggler. How many molecules
of gold were recovered? ( at. mass. of Au = 197 )

Answer 1

Answer:

Explanation:

The mass of gold =19.7 kg =19.7×1000 g =19700 g.

The atomic mass of gold is  197 g/mol.

The number of moles of gold=19700gram/197gram/mole=100mole

The number of atoms of gold = 100$X$6.02$X$10^23=6.02$X$10^25

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