Question

What is the molar concentration of potassium ions in a 0.350 M K₃PO₄ solution?

a. 0.350 M
b. 0.700 M
c. 1.050 M
d. 0.175 M

Answer 1

The molar concentration of potassium ions in a 0.350 M K₃PO₄ solution is 1.050 M.

Step-by-step explanation:

To find the molar concentration of potassium ions in a 0.350 M K₃PO₄ solution, we need to determine the number of moles of K⁺ ions.

Since K₃PO₄ contains 3 moles of K⁺ ions per mole of compound, we can calculate the molar concentration using the formula:

Molarity (M) = (moles of solute) / (volume of solution in liters)

Therefore, the molar concentration of potassium ions in the solution is 1.050 M.