5. (2 pts) Find pH of solution obtained by dissolving 36.5 mg of hydrogen chloride gas in 100 mL of water
(4 pts) A pH of 0.002 M solution of monoprotic acid is 3.5. of the acid Find dissociation constant (1 pts) Find conjugate acids to the following bases: (i) sulfite ion, (ii) carbonate ion, and (iii) amide ion 5. (2 pts) Find pH of solution obtained by dissolving 36.5 mg of hydrogen chloride gas in 100 mL of water
2. (2 pts) Find pH of solution obtained by dissolving 74 mg of calcium hydroxide in 100.0 mL of water.
5. (10 pts) Find pH of solution prepared by dissolving 1.0 g of sodium carbonate and 1.0 g of sodium hydrogen carbonate in enough water to make 100.0 mL solution. The base dissociation constant of carbonate ion is 1.8x10-4. Assume that hydrogen carbonate ion does not react with water.
(1 pts) Milk of magnesia has pH = 10.5. Find concentration of hydronium ions in milk of magnesia. (2 pts) Find pH of solution obtained by dissolving 74 mg of calcium hydroxide in 100.0 mL of water.
(5 pts) Find pH of a solution obtained by mixing 50.0 mL of 0.2 M acetic acid with 20.0 mL of 0.4 M sodium hydroxide. Acid dissociation constant of acetic acid is 1.8x10
2. (5 pts) Find pH of a solution prepared by mixing 45 mL of 0.1 M ammonia and 65 mL of 0.3 M ammonium chloride. K of ammonia is 1.8x10.
4) A buffer solution is prepared by dissolving 5.40 g of ammonium chloride in 20.0 mL of water a mixing it with 35.0 mL of 10.0 Mammonia. Ky for ammonia is 1.8x10° a) What is the pH of this buffer solution b) This buffer solution is diluted with water to volume of 100.0 mL and 5.00 mL of 0.500 M HCl are added to the 100.0 mL of buffer. What is the expected pH of the buffer solution after the...
What is the pH of a solution obtained by dissolving two extra-strength aspirin tablets, containing 420 mg of acetylsalicylic acid each, in 310 mL of water? Express your answer to two decimal places. The active ingredient in aspirin is acetylsalicylic acid (HC9H7O4), a monoprotic acid with a Ka of 3.3×10−4 at 25 ∘C.
A stock solution was prepared by dissolving 142.0 mg of potassium chromate in 100.00 mL water. Calculate the concentration of the red stock solution.
A solution is made by dissolving 25.7 g of copper(II) chloride, CuCl2, in enough water to make exactly 100 mL of solution. Calculate the concentration (molarity) of CuCl2 in mol/L (M). M CuCl2