Calculate the Molarity of a 5.00 L of solution containing 120. g NaOH. Molar mass of NaOH is 40.00 g/molGroup of answer choices0.600 M24.0 M1.67 M8.00 M
Question
Calculate the Molarity of a 5.00 L of solution containing 120. g NaOH.
Molar mass of NaOH is 40.00 g/mol
Group of answer choices
- 0.600 M
- 24.0 M
- 1.67 M
- 8.00 M
Solution
Step 1: Calculate the number of moles of NaOH.
The molar mass of NaOH is given as 40.00 g/mol. So, the number of moles of NaOH can be calculated by dividing the mass of NaOH by its molar mass.
Number of moles = mass/molar mass = 120 g / 40.00 g/mol = 3 moles
Step 2: Calculate the molarity of the solution.
Molarity is defined as the number of moles of solute per liter of solution. The volume of the solution is given as 5.00 L.
Molarity = moles/volume = 3 moles / 5.00 L = 0.600 M
So, the molarity of the solution is 0.600 M.
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