Determine the pH (to 2 decimal places) of a 1.92×10-2 M solution of triethylamine. The pkB value is 2.99. If the 5% approximation is valid, use the assumption to compute pH.
Determine the pH (to 2 decimal places) of a 1.92×10-2 M solution of triethylamine. The pkB...
Determine the pH (to two decimal places) of the following solutions. A table of pKa values can be found here. If the 5% approximation is valid, use the assumption to compute pH. 6.80×10-3 M butanoic acid Tries 0/13 9.74×10-1 M formic acid Tries 0/13 8.47×10-3 M methylamine Tries 0/13 6.59×10-3 M triethylamine
Determine the pH (to two decimal places) of the following solutions. If the 5% approximation is valid, use the assumption to compute pH. 8.72×10-3 M sodium hydrogen sulfate pKa hydrogen sulfate ion is 1.92 8.73×10-3 M trifluoroacetic acid pKa trifluoroacetic acid is 0.20 8.20×10-3 M ethylamine pKa ethylammonium ion is 10.87 2.51×10-1 M sodium nitrite pKa nitrous acid is 3.37
Determine the pH (to two decimal places) of the following solutions. A table of pKa values can be found here. If the 5% approximation is valid, use the assumption to compute pH. 6.80×10-3 M butanoic acid Tries 0/13 9.74×10-1 M formic acid Tries 0/13 8.47×10-3 M methylamine Tries 0/13 6.59×10-3 M triethylamine
1.The pH of a 2.65×10-3 M solution of a weak base is 9.17. Calculate pKb for this base to two decimal places. 2.Determine the mass (in g) of sodium butanoate (NaC3H7COO) that must be added to 78.9 mL of 0.609 M butanoic acid to yield a pH of 6.43. Report your answer to 3 significant figures. Assume the volume of the solution does not change and that the 5% approximation is valid.
Determine the pH (to two decimal places) of a solution prepared by adding 239 mL of 0.750 M sodium dihydrogen citrate (NaC3H5O(COOH)2COO) to 3.99 g of sodium hydrogen citrate (Na2C3H5O(COOH)(COO)2). Assume the volume of the solution does not change and that the 5% approximation is valid. pKa=4.77
QUESTION 1 Determine the pH (to two decimal places) of a solution prepared by adding 93.9 ml. of 0 271 M formic acid (HCO2H) to 40.3 g of sodium formato (NaCo2H). Assume the volume of the solution does not change and that the 5% approximation is valid The pka of formic acid is 3.75.
Determine the pH of the solution (to 2 decimal points) after the addition of 73.3 mL of 0.0154 M perchloric acid (HClO4) to 975 mL of 0.0517 M sodium hydrogen citrate (Na2C3H5O(COOH)(COO)2). Assume that the volumes are additive and that the 5% approximation is valid. A table of pKa values can be found here.
Determine the pH (to two decimal places) of the solution that is produced by mixing 1.5 mL of 6.41×10-5 M HClO4 with 1.76 mL of 3.06×10-2 M CaH2.
What is the ph of a 0.050 M triethylamine (C2H5) 3N solution? kB for triethylamine is 5.3 x 10^-4 5.32 2.31 1.30 8.68 or 11.69
1. Determine the pH (to two decimal places) of the solution that is produced by mixing 30.1 mL of 4.88x103 M HCI with 113 mL of 3.78x10-3 M HNO3 提交答案 Tries 0/3 2. Determine the pOH (to two decimal places) of the solution that is produced by mixing 85.5 mL of 6.26×10-4 M Na20 with 99.7 mL of 7.89×10-4 M Cao. 提交答案 Tries 0/3 3. Determine the pH (to two decimal places) of the solution that is produced by mixing...