12.0 g NaHSO4 is dissolved in water to make a 2.00 L solution. What is the molarity?

0.045 M

Explanation:

Given data:

Mass of NaHSO₄ = 12 g

Volume of solution = 2.00 L

Molarity of solution = ?

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

Number of moles = 12 g/ 120.06 g/mol

Number of moles = 0.09 mol

Molarity:

Molarity = 0.09 mol / 2.00L

Molarity = 0.045 mol/L

 M = mol/L

Molarity = 0.045 M

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