Question

Sally has constructed a concentration cell to measure ksp for mcln. She constructs the cell by adding 2 ml of 0.05 M M(NO₃)N to one compartment of the microwell plate. She then makes a solution of MClN by adding KCl to M(NO₃)N. She adds 2.401 ml of the resulting mixture to a second compartment of the microwell plate. Sally knows n (the charge on the metal ion) = 2. She has already calculated [Mn] in the prepared MClN solution using the Nernst equation. [Mn] = 4.699 M. How many moles of [Mn] are dissolved in that compartment of the microwell plate?

Answer 1

To calculate the moles of [Mn] in solution, multiply the given concentration (4.699 M) by the volume of the solution in liters (0.002401 L). This will yield the moles of [Mn] in the compartment of the microwell plate.

Step-by-step explanation:

The student has calculated the concentration of metal ion [Mn] in a prepared MClN solution using the Nernst equation, which they found to be 4.699 M. To find the number of moles of [Mn] dissolved in the 2.401 mL compartment, we use the formula that relates moles, concentration, and volume:

moles = concentration × volume

In this case, volume needs to be in liters (since concentration is in moles per liter), so 2.401 mL must be converted to 0.002401 L.

Thus, the number of moles of [Mn] is:

× 0.002401 L =

The answer will provide the number of moles of [Mn] dissolved in that compartment of the microwell plate.