1. What is the pH of a buffer solution prepared with a 0.4 M sodium citrate...
What is the pH of a buffer solution prepared with a 0.5 M sodium citrate and 1% citric acid (pKa for citric acid = 3.13, MW = 192 g/mole).
Calculate the molar ratio of citric acid and sodium citrate required to prepare 40mM buffer pH 4.8 citric acid pka= 3.13, 4.76, 6.39
A solution of sodium citrate (monobasic) is prepared to a formal concentration of 0.2 M. If the pKa's for the triprotic citric acid molecule are 3.13, 4.76, 6.40 what is the approximate pH of this solution?
Calculate and formulate an opthalmic buffer solution of boric acid (pKa= 9.24) and sodium borate. To make it pH 9.0 with buffer capacity of 0.02, the molar concentrations of boric acid and sodium borate should be ___ Mol/L.
1. Calculate and formulate an ophthalmic buffer solution of boric acid (pKa=9.24) and sodium borate. To make it pH 9.0 with buffer capacity of 0.02, the molar concentrations of boric acid should be ____Mol/L. 2. And the molar concentration of and sodium borate should be ___Mol/L.
A buffer solution is prepared by mixing 23.6 mL of 0.398 M sodium dihydrogen citrate with 36.6 mL of 0.881 M sodium hydrogen citrate A table of pKa values can be found here 1. Calculate the pH (to two decimal places) of this solution Assume the 5% approximation is valid and that the volumes are additive. Submit Answer Tries 0/3 2. Calculate the pH (to two decimal places) of the buffer solution after the addition of 24.9 mL of a...
a. One desires to adjust a solution of pH 8.8 by the use of a boric acid/sodium borate buffer. What approximate ration of acid and salt is required? pKa of boric acid = 9.24?
Calculate and formulate an ophthalmic buffer solution of boric acid (pKa=9.24) and sodium borate. To make it pH 9.0 with buffer capacity of 0.02, the molar concentrations of boric acid should be ____mMol/L. And the molar concentration of and sodium borate should be ___mMol/L.
Determine the pH and pOH of a 0.250 L of a buffer that is 0.0210 M boric acid and 0.395 M sodium borate. pKa for B(OH)3=9.00 at 25C
29. A student has 200 mL of a buffer solution that consists of 0.700 M of citric acid and 0.500 M sodium citrate. What is the pH of this solution? The pKal of citric acid is 3.06. 30. Give the formula and name of a metal hydroxide base.