8.859kg of Al2(CO3)3 is to make a 5896mL aqueous solution. How much water must be added to the solution, in Liters, to arrive to a 0.113M solution of a aluminum Carbonate. [Al2(CO3)3=233.99g/mol]

Laura and Sebastian create an aqueous solution of Ba(OH)2 by pipetting 25.00 mL of 0.0970 M Ba(NO3)2 into an Erlenmeyer flask and that contains 25.00 mL of 0.105 M KOH. a) Calculate the molar concentrations of Ba2+(aq) and OH1-(aq) in their 50.00 mL solution. b) Use the molar concentrations of Ba2+(aq) and OH1-(aq) as determined above and the Ksp to show why a precipitate does not form. You must include a calculation as part of your answer. The value of Ksp for Ba(OH)2, is 5.0 x 10-3. c) Laura adds solid KOH to their solution of Ba(OH)2 until the hydroxide concentration, [OH1-], becomes 0.200 M. Assuming that the volume of the solution does not change, does the molar concentrations of Ba2+(aq) increase, decrease or remain the same? justify your answer.

You have an aqueous solution of 0.01 M HNO2. What would you expect to happen if you dissolve solid KNO2 in the solution of HNO2? Be sure you canexplain your answer.

A 0.491 g sample of sodium propanoate, NaC, H,O, , is added to a 55.0 mL sample of a 0.270 M solution of propanoic acid. Assume that no change in the volume of the solution occurs. How many moles of C,H,0, are present from the addition of sodium propanoate? mol C,H,05 = mol What is the volume of solution in liters? volume solution = What is the concentration of the propanoate ion, C,H,0, (aq), in the solution? [C,H,O,] = M

4 ) When a 5.64 g sample of a non - electrolyte was dissolved in 40.0 g of water , the freezing point of the resulting solution was found to be -3.61 ° C . Calculate the molar mass of the dissolved non -electrolyte K f =1.86^ C/m

Another way to disinfect swimming pools is to use low concentrations of silver ions by using sparingly soluble salts of silver. Calculate the concentration of Ag* when 3.0 g of AgCl is placed in 200 mL of water (Ksp AgCl = 1.8 x 10-¹0).

If 55.0 mL of a 0.25M solution of Mg(OH)2 is spilt on the floor, what volume, in mL, of 0.15M HBr  is needed to neutralize the base?  2HBr(aq) + Mg(OH)2 --> 2H2O(l) + MgBr2(aq)

10) How many miligrams of BaSO4 are dissolved in a 225 mL sample of BaSO4(aq)? (Hint: calculate the solubility of a slightly soluble solute) Ksp= 1.1x 10-10

You are preparing standard acid and base solutions for the laboratory, using potassium hydrogen phthalate (KHC₈H₄O₄, abbreviated KHP) as the primary standard. KHP (molar mass = 204.22 g/mol) has one acidic hydrogen. You prepared solutions of both NaOH and HCl. It took 22.65 mL of the NaOH solution to titrate (react exactly with) 1.55 g KHP. It then took 32.35 mL of HCl solution to titrate 25.00 mL of the NaOH solution. What is the molarity of the HCl solution?

Consider the following chemical reaction. 3 Zn(C₂H₃O₂)₂(aq) + 2 Na₃PO₄(aq) → 6 NaC₂H₃O₂(aq) + Zn₃(PO₄)₂(s) A chemist makes a solution of zinc acetate by dissolving 20.5 g Zn(C₂H₃O₂)₂ in 105 mL H₂O. What is the concentration of this zinc acetate solution?