Suppose that 3.50 g of solid potassium chromate is added to 75.0 mL and 0.250 M Mg(NO3)2(aq).
a) What is the initial molarity of potassium chromate in the solution?
b) What mass of potassium is present in solution? Write the formula for the precipitate that forms. Assume a final volume of 75.0 mL.