44. How many atoms of gold are there in a pure gold ring with a mass...

Question

Question

44. How many atoms of gold are there in a pure gold ring with a mass of 10.6 g?

Answer 1

Answer #1

Ans 44 :

Molar mass of gold is : 196.97 g/mol

each mol has 6.022 x 10²³ gold atoms

So number of atoms of gold in gold ring of mass 10.6 g will be :

= ( 10.6 x 6.022 x 10²³) / 196.97

= 3.24 x 10²² gold atoms

Answer 2

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