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12 solutions

Diprotic Acid

Q. Calculate the pH and [SO42-] in 500. mL of sulfuric acid solution that was made by dilution of 13.3 mL of 3.0 M stock solution.

Solved • Jun 11, 2019

Diprotic Acid

Q. What is the equilibrium concentration of H2C2O4 in a 0.542 M oxalic acid, H2C2O4, solution? For oxalic acid, Ka1 = 6.1 x 10–2 and Ka2 = 5.1 x 10–5.

Solved • Jun 2, 2019

Diprotic Acid

Q. For the diprotic weak acid H2A, Ka1 = 2.5 × 10-6 and Ka2 = 8.5 × 10-9. What is the pH of a 0.0750 M solution of H2A? What are the equilibrium concentrations of H2A and A2– in this solution?

Solved • Apr 25, 2019

Diprotic Acid

Q. Nicotine, C10H14N2, is a base that will accept two protons (K1 = 7 × 10−7, K2 = 1.4 × 10−11). What is the concentration of each species present in a 0.050-M solution of nicotine?

Solved • Apr 4, 2019

Diprotic Acid

Q. What is the hydroxide-ion concentration in a 0.22 M solution of Na2CO3? For carbonic acid, Ka1 = 4.2 x 10–7 and Ka2 = 4.8 x 10–11

Solved • Mar 30, 2019

Diprotic Acid

Q. What is the hydroxide-ion concentration of a 0.250 M sodium oxalate (Na2C2O4) solution? For oxalic acid (H2C2O4), Ka1 = 5.6 x 10–2 and Ka2 = 5.1 x 10–5.

Solved • Mar 30, 2019

Diprotic Acid

Q. Please answer step by step An 2.2507 g sample oxalic acid (MW= 90.03 g/mol) is dissolved in water to make a 250.0 mL solution. GIven that Ka1 = 6.5x10-2, Ka2 = 6.1x10-5.

Solved • Mar 27, 2019