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- An unknown 36% v/v monohydroxide reagent has a density of 1.8 g/mL. Zeus wanted to determine the identity of this base, so he transferred a 90.916-mL aliquot of the base to a 1.0 L volumetric flask and diluted it up to mark. He then titrated the base solution and found out that its concentration is 1.0 M.a. What is the molarity of the base solution after dilution? b. If this 1.00M solution is used in the analysis of PLA (Polylactic Acid) plastics for lactic acid (H2Lactate) titration, what is its concentration in titer mg LA/mL titrant? (Lactic Acid: 90.08 g/mol)c. What is the molarity of the unknown monohydroxide reagent?d. What is the molar mass of the unknown monohydroxide reagent?(Density of H2O = 0.99707 g/mL)Hint: Mass of solution = mass of solvent + mass of solutee. What is the identity of the unknown monohydroxide reagent?What is the mass concentration (in g L–1 to two decimal places) of copper(II) hydroxide in a saturated aqueous solution (at 25 °C)? Ksp = 2.2 x 10^-20Calculate the solubility of solid Ca3(PO4)2 (Ksp=1.3 x 10^-32) in a .20 M Na3PO4 solution.
- 6. Give the molar concentration of hydrochloric acid with a specific gravity of 1.18 and has 37.0% (w/w) purity. MM=36.5 g/nWhat is the solubility of SrF2 in g/L if its Ksp is 1.5 x 10-9 ? (MM = 125.6 g/mol) 0.019 0.091 0.0091 0.0019How many mg of Ag2SO4 dissolve in 0.3 M, 500 mL of Al2 (SO4) 3 solution? Compare this solubility with the solubility in purified water and 0.1 M Al2 (SO4) 3 solution. (Ksp = 1.10-5)
- if 361.3 mg of Li2(SO4) (FW=109.95) is added to 450 mL of 0.828 M NH4F, what is the Qip for lithium fluoride. (Ksp of lithium fluoride= 3.8 x10^-3)How to prepare these solutions? 250.0 mL 0.125 M stock Na2S2O3 solution from Na2S2O3·5H2O crystals 250 mL 0.10 M NaOHNOTE: Use the 1.0 M NaOH prepared250.0 mL standard 2500 ppm Cu(II) stock solutiona. Weigh and dissolve appropriate amount of Cu(NO3)2·5H2O crystals in enough distilled water.84 mL of 0.060 M NaF is mixed with 28 mL of 0.15 M Sr(NO3)2. Calculate the concentration of Sr2+ in the final solution. Assume volumes can be added. (Ksp for SrF2 = 2.0 × 10-10) A. 0.038 M B. 0.00012 M C. 0.015 M D. 0.045 M E. 0.075 M