The diacid compound H2A of concentration 0.100 M and volume 50.00 mL (pKa1 = 4, pKa2 = 7) was titrated with NaOH 0.500 M.
The diacid compound H2A of concentration 0.100 M and volume 50.00 mL (pKa1 = 4, pKa2...
A 100.0-mL aliquot of 0.100 M diprotic acid H2A (PK1 = 4.00, PKa2 = 8.00) was titrated with 1.00 M NaOH. Find the pH at the following volumes of base added. a) 1 ml, b) 11 mL, c) 20 mL and d) 22 mL.
A 100.0 mL aliquot of 0.100 M monoprotic acid H2A (pK1 = 4.00) was titrated with 1.00 M NaOH. Find the pH at the following volumes of base added: Vb = 0, 5, 9, 10 and 11 mL. Sketch the titration curve.
Maleic acid is a weak diprotic acid with : pKa1 = 1.87 pKa2 = 6.07 A 10.00 mL solution of 0.1000 M maleic acid is titrated with 0.1000 M NaOH. Calculate the pH of the solution at the first equivalence point.
A solution containing 50.00 mL of 0.100 M of acetic acid is titrated with 0.100 M of a strong base KOH. Calculate the pH of the solution before the base is added. Ka = 18x10-5 OAZO OB 10 OC 29 00.25
40.0 ml of an acetic acid of unknown concentration is titrated with 0.100 M NaOH. After 20.0 mL of the base solution has been added, the pH in the titration flask is 5.10. What was the concentration of the original acetic acid solution? [Ka(CH3COOH) = 1.8 × 10–5]
4) A 40.0 mL sample of 0.100 M HCl is titrated with 0.100 M NaOH. Calculate the pH after the addition of each of the following volumes of NaOH: (a) 0,0 mL, (b) 20.0 mL, (c) 40,0 mL, (d) 60,0 mL. A plot of the pH of the solution as a function of the volume of added titrant is known as a pH titration curve. Using the available data points, plot the pH titration curve for the above titration,
1. Titration of a diprotic acid, H2A. Consider the titration of 50 mL of 0.02 M H2A with 0.1 M NaOH. pKa1 = 4.00 and pKa2 = 8.00. For each point in the titration, calculate [H+]. a) Before any titrant is added b) after 5 mL of titrant added c) after 6 mL titrant is added d) after 10 mL titrant is added e) after 15 mL titrant is added f) after 17 mL titrant is added g) after 20...
Consider a 0.0100 M solution of malonic acid (H2A) with pKa1 = 2.847 and pKa2 = 5.696 a. Calculate the pH of the solution. b. Calculate the fraction of malonic acid existing as A2-. Does the second dissociation step make a significant contribution to the H+ in solution?
Assume that 22.00 mL of NaOH (0.100 M) was consumed to titrate a 10.00 mL H2CO3 solution (fully converted to Na2CO3) pKa1= 6.351 and pKa2= 10.329. (a) what is the concentration of the initial H2CO3 solution? (b) what is the pH of the H2CO3 solution before titration? (c) which is the principal (dominating) species when 5.00 mL of NaOH has been added? (d) what is the pH of the solution when 15.00 mL of NaOH has been added? (e) what...
Assume that 22.00 mL of NaOH (0.100 M) was consumed to titrate a 10.00 mL H2CO3 solution (fully converted to Na2CO3). pKa1= 6.351 and pKa2= 10.329 (a) what is the concentration of the initial H2CO3 solution? (b) what is the pH of the H2CO3 solution before titration? (c) which is the principal (dominating) species when 5.00 mL of NaOH has been added? (d) what is the pH of the solution when 15.00 mL of NaOH has been added? (e) what...