23) What is the pH and percent ionization of a 0.100M solution of sodium formate (NaHCOO)?...
Calculate the pH of a solution made by adding 25.0 g of sodium formate, NaHCOO, to 400 mL of 0.64 M formic acid, HCOOH Answer:
Calculate the pH of a solution made by adding 48.0 g of sodium formate, NaHCOO, to 100. mL of 0.21 M formic acid, HCOOH. Hint what kind of solution is made? The Ka for HCOOH is 1.8 x 10-4 M. As usual, report pH to 2 decimal places.
Calculate the pH of a solution made by adding 34.0 g of sodium formate, NaHCOO, to 400. mL of 0.31 M formic acid, HCOOH. Hint what kind of solution is made? The Ka for HCOOH is 1.8 x 10-4 M. As usual, report pH to 2 decimal places.
Calculate the pH of a solution made by adding 35.0 g of sodium formate, NaHCOo, to 100 mL of 0.21 M formic acid, HCOOH. Hint what kind of solution is made? The K, for HCOOH is 1.8 x 10-4 M. As usual, report pH to 2 decimal places. Answer:
Calculate the pH of a solution made by adding 35.0 g of sodium formate, NaHCOO, to 100. mL of 0.21 M formic acid, HCOOH. Hint what kind of solution is made? The K, for HCOOH is 1.8 x 10-4 M. As usual, report pH to 2 decimal places. Answer:
Calculate the pH of a solution made by adding 25.0 g of sodium formate, NaHCOO, to 400 mL of 0.64 M formic acid, HCOOH Answer:
Calculate the pH of a solution made by adding 25.0 g of sodium formate, NaHCOO, to 400 ml of 0.64 M formic acid, нсоон. Answer: What is the pH of pure water at 25°C? Answer: When a small amount of acid is added to a non-buffered solution, there is a large change in pH. Calculate the pH when 22.2 ml of 0.0020 M HCl is added to 100.0 mL of pure water. Comment and hint in the general feedback Answer:
23. A 1.0 L buffer solution is prepared with 0.25 M formic acid (HCOOH) and 0.50 M sodium formate (HCOONa). HCOOH(aq) + H2O(aq) – HCOO (aq) + H30+(aq) pKa = 3.74 What is the pH of this buffer solution? (A) 3.74 (B) 4.04 (C) 4.50 (D) 4.20
Calculate the pH of a solution that is 0.260 M in sodium formate (HCOONa) and 0.100 M in formic acid (HCOOH). Calculate the pH of a solution that is 0.500 M in pyridine (C5H5N) and 0.430 M in pyridinium chloride (C5H5NHCl). Calculate the pH of a solution that is made by combining 55 mL of 0.060 M hydrofluoric acid with 125 mL of 0.100 M sodium fluoride
How many grams of sodium formate, NaCHO2, would have to be dissolved in 3.0 L of 0.12 M formic acid (pKa 3.74) to make the solution a buffer for pH 5.30?