Question

How many Na+ ions are there in 29.25g of NaCl?


3 x 1023


6 x 1023


1.2 x 1026


2.3 x 1023

Answer 1

I didn't get any of the above. I attached how I solved the question.

Answer 2

Molar mass of NaCl = 58.5 gm/mol
So,
no.of moles of NaCl=29.25/58.5=1/2 moles

Answer 3

now, there are also 1/2 moles of Na+ ion in 1/2 moles of NaCl...
So,
No. of Na+ ions = 1/2 * 6.23 * 10^23
= 3*10^23

Answer 4

thanx everyone :)