Multiple Choice
A 0.167 M solution contains 5.0 g of NaOH. What is the volume of the solution in liters?
6. Chemical Quantities & Aqueous Reactions
Molarity
Multiple Choice
What is the molarity of an 18 L solution containing 64 grams of sodium chloride (NaCl) dissolved in it? (Molar mass of NaCl = 58.44 g/mol)
A
0.089 M
B
0.051 M
C
0.061 M
D
0.062 M
Verified step by step guidance1
Identify the given information: volume of solution = 18 L, mass of NaCl = 64 g, and molar mass of NaCl = 58.44 g/mol.
Calculate the number of moles of NaCl using the formula: \(\text{moles} = \frac{\text{mass}}{\text{molar mass}} = \frac{64}{58.44}\).
Recall the definition of molarity: \(M = \frac{\text{moles of solute}}{\text{liters of solution}}\).
Substitute the values into the molarity formula: \(M = \frac{\text{moles of NaCl}}{18}\).
Perform the division to find the molarity of the NaCl solution.
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