Answer:
1.2 moles KCl
Explanation:
First calculate molar mass of KCl by adding individual molar masses of K and Cl. So, 39.1 + 35.5 = 74.6 g/mol.
Now, simply divide the grams of KCl by the molar mass. See that when I set up the equation down below, the grams cancel out giving us moles of KCl which is what we need.
[tex]89 g KCl * \frac{1 mol KCl}{74.6 g KCl} \\\\= 1.2 moles KCl[/tex]
