please help. this is lab 5.

3. Suppose, in lab, we performed a quantitative, gravimetric analysis of the sulfate ion in TEST 1. We would collect the washed precipitate from TEST 1 , thoroughly dry it, and weigh it. Use the data below to calculate the concentration, as molarity, of the sulfate ion: Volume of the sample =25.00mL Mass of dry BaSO4=0.0654g(65.4mg) Assume that the collected BaSO4 has no waters of hydration or impurities. Show all of your alculations, including calculation of molecular weight. 4. Convert the molarity from Question 3 to milligrams per liter (mg/L) of the sulfate ion. Use the molar mass of the sulfate ion alone. (Recall that 1gram=1000mg exactly.)