Scelta multipla
A solution is prepared by dissolving 0.50 mol of NaCl in enough water to make 1.0 L of solution. What is the molarity of Cl⁻ in the solution?
113
views
6. Chemical Quantities & Aqueous Reactions
Molarity
Scelta multipla
What is the molarity of a solution containing 5.0 moles of KCl dissolved in 2.0 L of solution?
A
0.25 M
B
0.40 M
C
10.0 M
D
2.5 M
Guida verificata passo dopo passo1
Recall that molarity (M) is defined as the number of moles of solute divided by the volume of the solution in liters. The formula is: \(M = \frac{\text{moles of solute}}{\text{volume of solution in liters}}\).
Identify the given values: moles of KCl = 5.0 moles, volume of solution = 2.0 L.
Substitute the given values into the molarity formula: \(M = \frac{5.0}{2.0}\).
Perform the division to find the molarity (do not calculate the final number here, just set up the expression).
Interpret the result as the concentration of KCl in moles per liter, which represents the molarity of the solution.
Video correlati
Pratica correlata
