Calculate the pH of a solution made by dissolving solid MES (“HA”) in water to a concentration of 0.0500 M. Calculate the ionic strength of this solution.
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Calculate the pH of a solution made by dissolving solid MES (“HA”) in water to a...
a solution was made by taking 33.88 g of an uknown ionic solid(i=3) and dissolving it in 175.0 g of water. the measured freezing point of solution was -2.65 C. calculate the molecular weight of the unknown substance.
Calculate the pH of a solution prepared by dissolving 0.050 mol of benzoic acid (HA) and 0.50 mol of sodium benzoate (A-) in water sufficient to yield 1.00 L of solution. The Ka of benzoic acid is 6.30 x 10-5 A. 5.20 B. 1.30 C. 7.00 D. 3.20 E. 4.20
V Part A Calculate the pH in a solution prepared by dissolving 0.13 mol of solid NH,Cl in 0.560 L of 0.50 M NH, Assume that there is no volume change. Express the pH to three significant figures. | ΑΣφ pH =
A solution is made by dissolving 13.2 g of HCl in 774.7 mL of water. Calculate the pH of the solution. Assume that the volume of the solution not change with the addition of HCl.
Calculate the pH of the following buffer solutions: (a) a solution made by dissolving 4.550 g KH2PO4 and 1.871 g K2HPO4 in water to give 350. mL of solution. (b) a solution made by mixing 35.00 mL 0.35 M N2H4 with 15.00 mL 0.21 M N2H5Cl. The base dissociation constant Kb is 8.50 x 10-7 for N2H4 . Assume that the final volume is the sum of the volunes of the two solutions that are mixed.
A scientist prepared a 0.037 M NH4Cl salt solution by dissolving the solid salt in water. Calculate the pH at 25°C for the solution, given that the Kb of ammonia, NH3, is 1.8 ✕ 10−5.
An aqueous solution is prepared by dissolving the following chemicals into distilled water: I) CaCl2 (8.0 mM); 3) HCl (2.0 mM). Please determine the pH of this solution at 25 °C Hint: Ionic strength effects are not negligible in this solution
A solution is made by dissolving 14 g of silver nitrate, AgNO3, in enough water to make exactly 250 mL of solution. Calculate the concentration (molarity) of AgNO3 in mol/L (M)
A saturated solution of barium fluoride, BaF2, was prepared by dissolving solid BaF2 in water. The concentration of Ba2+ ion in the solution was found to be 7.52×10−3 M . Calculate Ksp for BaF2. The value of Ksp for silver chromate, Ag2CrO4, is 9.0×10−12. Calculate the solubility of Ag2CrO4 in grams per liter.