Question

Who wants a metal?

Answer 1

Which best compares 1 mol of sodium chloride to 1 mol of aluminum chloride?

A. Both have the same molar mass.

B. Both have the same number of ions.

C. Both are made up of 6.02 mc014-1 1023 molecules.

D. Both are made up of 6.02 mc014-2 1023 formula units.

The correct answer on E.D.G is ---Both are made up of 6.02 mc014-2 1023 formula units. D

Answer 2

Answer: Option (d) is the correct answer.

Explanation:

A formula unit is basically empirical formula of a compound which tells us how  many atoms of one element are combining with how many atoms of another element.

For example, empirical formula of sodium chloride is NaCl. So, basically it shows that one atom of sodium is reacting with one atom of chlorine.

Also according to Avogadro, there are $6.022 \times 10^{23}$ atoms present in 1 mole of each substance.

Thus, we can conclude that both are made up of $6.022 \times 10^{23}$ formula units best compares 1 mol of sodium chloride to 1 mol of aluminum chloride.