What is the mass of potassium chloride KCl if the amount of the substance is 1.5 mol.

univerkov | June 11, 2021 | education

Given:
n (KCl) = 1.5 mol

To find:
m (KCl) -?

1) Calculate the molar mass of KCl:
M (KCl) = Mr (KCl) = Ar (K) * N (K) + Ar (Cl) * N (Cl) = 39 * 1 + 35.5 * 1 = 74.5 g / mol;
2) Calculate the mass of KCl:
m (KCl) = n (vba) * M (vba) = 1.5 * 74.5 = 111.75 g.

Answer: The mass of KCl is 111.75 g.

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