50.0 grams of KCl is dissolved in water to make a 4.00 L

solution. What is the molarity of the solution? (Molar mass of

KCI = 74.5 g/mol) _ M (Round your answer to the

appropriate number of four significant figures)

Enter the answer

Check It

Molarity = 0.1678 M

Explanation:

Given dа ta:

Volume = 4.00 L

Mass of KCl = 50.0 g

Molarity = ?

Solution:

Formula:

Molarity = number of moles / volume in L

Number of moles = mass / Molar mass

Number of moles = 50.0 g / 74.5 g/mol

Number of moles = 0.8 mol

Molarity = 0.8 mol / 4.00 L

Molarity = 0.1678 M