Question

a sample of salt has 1.74 moles of sodium chloride. how many formula units of the ionic compound are in the sample?

Answer 1

A sample of salt has 1.74 moles of sodium chloride. how many formula units of the ionic compound are in the sample?

Step-by-step explanation:

Given, 1.74 moles of NaCl.

Since one mole of NaCl consists of ---
`6.023 * 10^2^3` formula units.

Then, 1.74mol of NaCl contains how many formula units of NaCl?

`1.74 mol x (6.023x10^2^3)/(1 mol) \\=10.5x10^2^3`formula units.

Hence, the given sample has 10.5x10^23 formula units.