a) Explain how you would prepare 1.0 L of a 1.3 M NaCl(aq) solution. (b) How many grams of sodium sulfate are required to make 500 mL of a solution which is 0.80 M in sodium ion?

A 9.835-gram sample of cobalt(II) chloride hexahydrate (CoCl2•6H2O; molar mass = 237.9 g/mol) is dissolved in 150.0 mL of solution. What is the molarity of CoCl2 in the solution? (A) 0.04134 M (B) 0.06557 M (C) 0.2756 M (D) 2.756 x 10–4 M

24)How many milliliters of an aqueous solution of 0.215 M potassium chloride is needed to obtain 17.9 grams of the salt?

What volume in mL of 0.3000 M NaI solution is required to produce 0.1700 moles of NaI?

How many grams of copper(II) sulfate, , must be dissolved to prepare 300. mL of a 0.153 M aqueous solution of the salt?

If a 8. 2 M of solution of KNO3 reaches a volume of 450 ml. what is the moles of solute needed?

What volume of 0.2456 M lead(II) nitrate solution would be required to reach the endpoint when reacting with 25.00 mL of potassium chromate solution (0.5056 M). What MASS of these products would be created in that reaction?

How many milliliters of an aqueous solution of 0.159 M nickel(II) acetate is needed to obtain 4.06 grams of the salt?

(a) How many milliliters of 0.145 M HCl are needed to neutralize completely 45.0 mL of 0.101 M Ba(OH), solution? ml (b) How many milliliters of 3.50 M H,SO4 are needed to neutralize 50.0 g of NaOH? mL (c) If 55.8 mL of BaCl, solution is needed to precipitate all the sulfate in a 544 mg sample of Na,SO4 (forming BaSO4), what is the molarity of the solution? (d) If 27.5 mL of 0.125 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solution?