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need help with 6,7,8 thank you.
6. During the titration of a weak acid, at the...
O OM NO which would be the 6. You are going to perform a titration between...
O OM NO which would be the 6. You are going to perform a titration between studio H indicator tene? a methyl red 5.5. pk.-5.5 b. phenolphthalein, pk.-9.3 c. thymol blue pk. - 1.6 d. bromothymol blue, pk- 7.0 e methyl violet, pk.-0.8 Which of the following statements is true a The standard molar entropy of an element at 298 K is OJK b. All reactions that release heat are spontaneous c. During a spontaneous process the Gibbs energy increases...
can you please write the calculations with clear writing and explanations and thank you (3) (4)...
can you please write the calculations with clear
writing and explanations and thank you
(3) (4) B) Preparation a) Place about 50 ml of distilled water in a 0.1 liter volumetric flask. b) Use a 1 ml pipette to transfer 0.83 ml of conc. HCl to the flask. Add distilled water until the volume is 0.1 liter. Save for later use. Prepare 0.1 liter of 0.1 M sodium hydroxide (MW= 40.0 (skip this exercise)). A) Calculations B) Preparation Prepare 0.1...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 67.3...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 67.3 mL of 0.419 M hypochlorous acid (K-3.5x10-) by 0.419 M NaOH at the following points. (a) Before the addition of any NaOH (b) After the addition of 15.0 mL of NaOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 101 mL of NaOH
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500...
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The Ka for HOCI is 3.0 x 10-8 M. Need help? Hint, given in general feedback. Answer: 3.96 Make ICE table and use simplified method of successive approximations (no iterations needed). How many mL of NaOH are added to reach the equivalence point? Answer: 8 What is the pH after 3.20...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 60.9...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 60.9 mL of 0.396 M hypochlorous acid (K4 = 3.5x10-8) by 0.396 M KOH at the following points. (a) Before the addition of any KOH (b) After the addition of 15.0 mL of KOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 91.4 mL of KOH
Question two A buffer solution is able to maintain a constant pH when small amounts of...
Question two
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 ml solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O2. The initial concentration of both the acid and the base are 0.0100 mol/0.1000...
1. The following pictures represent solution at various points in the titration of a weak acid...
1. The following pictures represent solution at various points in the titration of a weak acid with a strong base. HA + OH - HOH + A OH - -OH Which picture to the left corresponds to cach of the following points in the titration? before the addition of any NaOH at the equivalence point where only a salt remains which solution is a buffer? Multiple Choice 1. Barium hydroxide is slightly soluble in water, with a Kap of 5.00...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 59.3...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 59.3 mlL of 0.335 M nitrous acid (K-4.5x104) by 0.335 M KOH at the following points. (a) Before the addition of any KOH (b) After the addition of 15.0 mL of KOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 89.0 mL of KOH
Determine the pH during the titration of 22.4 mL of 0.136 M hydroiodic acid by 0.222...
Determine the pH during the titration of 22.4 mL of 0.136 M hydroiodic acid by 0.222 M sodium hydroxide at the following points: (1) Before the addition of any sodium hydroxide (2) After the addition of 6.85 mL of sodium hydroxide (3) At the equivalence point (4) After adding 17.4 mL of sodium hydroxide
O OM NO which would be the 6. You are going to perform a titration between studio H indicator tene? a methyl red 5.5. pk.-5.5 b. phenolphthalein, pk.-9.3 c. thymol blue pk. - 1.6 d. bromothymol blue, pk- 7.0 e methyl violet, pk.-0.8 Which of the following statements is true a The standard molar entropy of an element at 298 K is OJK b. All reactions that release heat are spontaneous c. During a spontaneous process the Gibbs energy increases...
can you please write the calculations with clear
writing and explanations and thank you
(3) (4) B) Preparation a) Place about 50 ml of distilled water in a 0.1 liter volumetric flask. b) Use a 1 ml pipette to transfer 0.83 ml of conc. HCl to the flask. Add distilled water until the volume is 0.1 liter. Save for later use. Prepare 0.1 liter of 0.1 M sodium hydroxide (MW= 40.0 (skip this exercise)). A) Calculations B) Preparation Prepare 0.1...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 67.3 mL of 0.419 M hypochlorous acid (K-3.5x10-) by 0.419 M NaOH at the following points. (a) Before the addition of any NaOH (b) After the addition of 15.0 mL of NaOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 101 mL of NaOH
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The Ka for HOCI is 3.0 x 10-8 M. Need help? Hint, given in general feedback. Answer: 3.96 Make ICE table and use simplified method of successive approximations (no iterations needed). How many mL of NaOH are added to reach the equivalence point? Answer: 8 What is the pH after 3.20...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 60.9 mL of 0.396 M hypochlorous acid (K4 = 3.5x10-8) by 0.396 M KOH at the following points. (a) Before the addition of any KOH (b) After the addition of 15.0 mL of KOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 91.4 mL of KOH
Question two
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 ml solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O2. The initial concentration of both the acid and the base are 0.0100 mol/0.1000...
1. The following pictures represent solution at various points in the titration of a weak acid with a strong base. HA + OH - HOH + A OH - -OH Which picture to the left corresponds to cach of the following points in the titration? before the addition of any NaOH at the equivalence point where only a salt remains which solution is a buffer? Multiple Choice 1. Barium hydroxide is slightly soluble in water, with a Kap of 5.00...
Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 59.3 mlL of 0.335 M nitrous acid (K-4.5x104) by 0.335 M KOH at the following points. (a) Before the addition of any KOH (b) After the addition of 15.0 mL of KOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 89.0 mL of KOH
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