Scelta multipla
What is the molarity of an HCl solution prepared by dissolving 52.9 g of HCl in enough water to make 250 mL of solution?
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6. Chemical Quantities & Aqueous Reactions
Molarity
Scelta multipla
What is the molarity of a solution containing 7.0 moles of solute in 569 mL of solution?
A
12.3 M
B
1.23 M
C
0.082 M
D
0.41 M
Guida verificata passo dopo passo1
Identify the formula for molarity, which is defined as the number of moles of solute divided by the volume of the solution in liters: \(M = \frac{\text{moles of solute}}{\text{volume of solution in liters}}\).
Convert the volume of the solution from milliliters to liters by dividing by 1000: \(569\ \text{mL} = \frac{569}{1000} = 0.569\ \text{L}\).
Substitute the given values into the molarity formula: moles of solute = 7.0 moles, volume = 0.569 L, so \(M = \frac{7.0}{0.569}\).
Perform the division to find the molarity value (do not calculate the final number here, just set up the expression).
Interpret the result as the concentration of the solution in moles per liter (M), which tells you how many moles of solute are present in each liter of solution.
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