Calculate the concentration of all ions present in each of the following solutions of strong electrolytes. a. 0.400 mole of Ca (NO3)2 in 300.0 mL of solution Mca- | = Mnoz M b. 8.5 moles of Na2SO4 in 8.50 L of solution MNa+ = M Mso = M C. 5.60 g of NH4Cl in 860.0 mL of solution , M = Mai M d. 8.70 g of K3PO4 in 560.0 mL of solution MK = M Mpo, M Submit Answer Retry Entire Group 9 more group attempts remaining Calculate the molarity of each of these solutions. a. A 4.779-g sample of NaHCO3 is dissolved in enough water to make 235.0 mL of solution. Molarity 10 M b. A 188.6-mg sample of K2Cr2O7 is dissolved in enough water to make 545.0 mL of solution. = Molarity = M 2+ C. A 0.1021-9 sample of copper is dissolved in 35 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a total volume of 150.0 mL. (Calculate the molarity of Cu2+). 2+ Molarity = M Submit Answer Retry Entire Group 9 more group attempts remaining