Calculate the number of protons, electrons, and neutrons present in each component of 5.85g of NaCl. ( use N = 6 x 10^23)

Molecular weight of NaCl = 23 + 35.5 = 58.5 gram.

 

So, in 5.85 g of NaCl there will be number of moles of NaCl = 58.5/5.85 =10 moles 

 

In 10 moles of NaCl there will be 10 X 6.022 X 10²³ molecules of NaCl.

 

In 1 molecule of NaCl there are total electron = (11 X 1) + (17X 1) = 28

 

So, in 10 X 6.022 X 10²³ molecules of NaCl, total electrons =10 X 6.022 X 10²³ X 28 = 1686.44 X 10²³

or 16.86 X 10²⁵

 

Similarly total no. of protons and neutrons can also be calculated.