Question

7.45g of kcl
Contains how many ci- ions. 2​

Answer 1

Answer:

6.023 x 10^22 ions of Cl- ions are present in 7.45 g of KCl.

Explanation:

Molecular weight of KCl =  74.5 amu

Number of moles in 7.45 gram = 7.45 / 74.5 = 0.1 moles

In KCl there are 0.1 moles of Cl- ions.

1 mole = 6.023 x 10^23 ions

0.1 mole = ?                   ions

6.023 x 10^22 ions of Cl- ions are present in 7.45 g of KCl