Answered

How many moles of Na are there in 7.17 x10 37 ions of it?

Sagot :

Answer:

1.19 x 10^15

Explanation:

1 mole of Na contains 6.022 x 10^23 ions

Let the number of moles present in the ions be n.

So, (6.022 x 10^23) x n = 7.17 x 10^37

Thus n = (7.17 x 10^37) / (6.022 x 10^23)

n = 1.19 x 10^15