OL 20.00 1 C2 =.936 M 45. 7.00 mL of acetic acid is titrated with NaOH. If 19.2 mL of 0.200 M NaOH is nec equivalen...
25.00 mL of 0.150M benzoic acid HC7H5O2 was titrated with 0.200 M NaOH. Calculate the pH at the following points. Ka for benzoic acid is 6.3x10-5 a. Before adding any NaOH b. Halfway to equivalence c. After adding 12.2 mL of the NaOH d. At the equivalence point Please answer all the parts!
please solve and show work! A 25.0 mL sample of 0.200 M nitrous acid is titrated with a 0.200 M NaOH solution. What is the pOH at the equivalence point? The Ka of nitrous acid is 4.6 x 10-4 O A 8.11 O B.3.35 O c.5.85 OD. 10.65 E. 7.00
1.) 20.00 mL of 0.11 M benzoic acid (C6H5COOH, Ka = 6.3x10-5) is titrated with 0.25 M NaOH. What volume of base is required to reach the equivalence point in the titration? 2.) Calculate pH at each of the following points in the titration. a) 4.00 mL b) 8.80 mL
1.A 20.0-mL sample of 0.150 M nitrous acid (HNO:) is titrated with 0.200 M NaOH at 25°C. Calculate the pH after 10.0 mL of the NaOH solution has been added. K. for HNO2 = 4.5x 10 A) 3.65 B) 10.35 C) 10.95 D) 3.17 E) 3.52 2. Consider the following reaction: NO, (ag)+H(aq) + l:(s) NO:(g) + H20(D 10, (ag) Which of the following statements is correct? A) The species reduced is I B) Oxidation umber of oxygen increases C)...
1.Draw the pH titration curve for the titration of 35 mL of 0.150 M acetic acid with 0.200 M NaOH. Include the pH values and NaOH volume requested below on your pH titration curve. Also, put on the curve the species that dictates the pH at the requested pH values. For acetic acid, K = 1.8 x 10%. 1) the initial pH 2) the pH after 15.0 mL of NaOH have been added 3) the volume of NaOH at the...
In a titration, 25 mL of 0.10 M weak diprotic acid solution was titrated by 0.10 M sodium hydroxide, NaOH, and produced a titration curve listed below. (20 points total) 14,0 3. 12.0 10.0 8.0 pH 6.0 4.0 2.0 10.0 5.0 20.0 30.0 15.0 25.0 Volume of 0.100 M NaOH, mL The acid used in above titration is a weak diprotic acid. Briefly explain how you know it's diprotic from looking at the titration curve and how you know a...
3. If 15.0 mL of 0.125 M phosphoric acid is titrated with 0.100 M NaOH, what volume of the titrant (in mL) must be added to completely neutralize the acid? Show all of your work (including the chemical equation). (1 point) Post-lab Questions: Experiment #9: Acid-Base Titrations Student Learning Objectives : Students will gain practice with the accurate preparation of solutions. Students will perform acid-base titrations and prepare titration curves. Students will identify strong and weak acids by the shapes...