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- A solution was prepared by dissolving 16 g of CaCl2 in 72g of water and has a density of 1,180 g / cm3 at 20 ° C. Express the concentration in M, N, m/m and m/v.calculate the molarity of CaSO4 (s) in 0.450 M Na2SO4(aq) at 25°C. the ksp of CaSO4 is 4.93 x 10^-5. give answer in stnadard not scientific notationA 0.128 g sample of KHP (HKC8H4O4) required 28.54 mL of NaOH solution to reach a phenolphthalein endpoint. Calculate the molarity of the NaOH 0.0440 0.0200 0.0110 0.0220
- Given A solution of:...is boiled SOLVENT: Water (H2O) - 100mL or 100.00g SOLUTE: Salt (NaCl) - 11.60g How many moles of the SOLUTE was used in the experiment? [NaCl = 58.44 g/mol] Note: Answers must be numeric, not alphanumeric—42, not forty-two.A 50.0 mL portion of 0.500 M NaOH was diluted to 432.0 mL. What is the new molarity?To prepare 200.0 mL of 0.01 M EDTA solution, how many grams of EDTA disodium salt dihydrate (C10H14N2Na2O8 · 2H2O) do you need?
- Which of the following solutes will cause the LARGEST vspor pressure lowering when dissolved in H2O with solute:solvent molar ratio of 1:100 a. CH3OH b. C12H22O11 c. NaCl d. aluminum chlorideFind the number of millimoles of solute in 226ml of 0.320MHCl04 and 6.00L of an aqueous solution that contains 6.75ppm of AgNO3What is the molar fraction of glycine in an aqueous solution whose concentration is 0.140 molkg-1. Data: Mass H2O = 1 kg; M.M. H2O = 18.01 gmol-1.
- Mass of H2C2O4•2H2O = 1.3245 grams Molar Mass of H2C2O4•2H2O = 126.07 Volume of H2C2O4•2H2O solution = 250.0 mL Moles of NaOH at the equivalence point?What is the final molarity of sodium thiosulfate pentahydrate for each of the runs? Given: the initial volume of each component was diluted to 100mL mass of sodium thiosulfate pentahydrate used: 0.115g 0.0025 M sodium thiosulfate pentahydrate run #1: 10mL run #2: 10mL run #3: 10 mLGive typed full explanation A physician orders a liter of half-strength Dakin's solution. On hand in the pharmacy is full-strength Dakin's solution (0.5% sodium hypochlorite solution). How many mi of the stock solution are needed?
