My Bangle contains 8g of Gold. Calculate the number of atoms in it. Atomic mass of Gold is 197
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Answer:
1.93x10 ^24 electrons
Explanation:
Number of moles of gold in 8g
=8 /197
No of atoms of gold present in 8g
=8/197 x 6.02 x 1023
Now 1 atom of gold has 79 electrons
Therefore 8/197 x 6.02 x 1023 atoms has
=8/197 x 6.02 x 1023 x 79 electrons.
= 1.93 x 1024 electrons
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