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EXPERIMENT 16 ACIDS AND BASES: COMPLETE CURVE ANALYSIS HOMEWORK EXERCISES Name...
need help with 7 and 8. also did I do number nine right? • Write the...
need help with 7 and 8. also did I do number nine right?
• Write the ionization cautions for the dissociation of the diprotic acid, H,C,04. called oxalic acid. The following dissociation consta owing dissociation constants were located on a scrap piece of paper near the bottle of oxalic acid in the chemical room: 6.40 X 10 and 5.91 X 102. Assign cach equation you have written one of these values and explain your reasoning. H₂C₂O4 8. Given the K,...
EXPERIMENT 7 OXIDATION-REDUCTION TITRATIONS Name HOMEWORK EXERCISES Use the net ionic equations in problems I and...
EXPERIMENT 7 OXIDATION-REDUCTION TITRATIONS Name HOMEWORK EXERCISES Use the net ionic equations in problems I and 2 for problems 3-5 1. a. Write the balanced equations for the half reactions (ionic) and the overall net ionic equation for the titration of Mohr's salt with KMnO4. lonic MnO,: lonic Fe Net ionic: b. What is the standardized molarity of a KMnO4 solution if 36.31 mL are required to titrate 2.5010 g of Mohr's salt? 2. a. Write the balanced equations for...
Please help with d-g TITRATIONS CHEM 2. 20.00 mL of 0.270 M HA (K. = 7.2...
Please help with d-g
TITRATIONS CHEM
2. 20.00 mL of 0.270 M HA (K. = 7.2 x 10-4) was titrated with 0.300 M sodium hydroxide a) Write the titration equation and calculate volume of NaOH needed to reach the equivalence point. mL b) At what volume of the titrant would pH=pKa? Why? c) pH at the equivalence point when the acid and base are neutralized will be -. choose one of these answer choices given below: i) equal to 7...
ACID-BASE TITRATIONS HOMEWORK Use the data in Option A to answer questions 1.5 1. Write a...
ACID-BASE TITRATIONS HOMEWORK Use the data in Option A to answer questions 1.5 1. Write a balanced equation for the lanced equation for the reaction of the acid and base indicated. CH₃CH2COOH(aq) + NOOH(aq) + CH₂CH₂COONa(aq) + H₂O(e) 2. Determine the volume of titrant added at the equivalence point. CH3CH₂ Cootrag) + NaOH(aa) CH₃CH aded at the equivalence point. SHOW ALL WORK! 19) + NaOH (aa) + CH₃ CH₂ COONacaq) + H2Ocel 3. Determine the pH of the solution at...
I need help! 68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K...
I need help!
68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K for HCN is 6.2 X 10-10 d. (CH3)2NHCI Kb for (CH3)3N is 5.3 X 105 e. (CH3)2NHCN f. Cu(CIO4)2 10. In aqueous solution, ammonia reacts according to the following INT 9. Consider an aqueous solution of each o neutral, acidic, or basic. If the solutions are acidic or basi -HOL an aqueous solution of each of the following salts. For each salt, state whether...
TITRATION: I did the first page, but I need help with the rest; I'm lost. I...
TITRATION: I did the first page, but I need help with the rest;
I'm lost. I uploaded the first page because you need to reference
is for the preceding questions.
Pre-Lab Assignment: Titration (Week 11) Name: Group: Chapter 8 Section 7 in your lecture textbook covers the calculations needed for this week's lab. They are very similar to calculations we covered in Chapter 7. Complete the following before coming to lab. It will be GRADED! Given the balanced equation: HBraq)...
Need help with 3 and 4 on calculations. some info is on top of the page...
Need help with 3 and 4 on calculations. some info is on top of
the page
Data Sheet for Lab #10 Name: Partner: Data/Observations: Volume of (NH), SO, used: Suomi initial pH of (NH4)2SO4 6.79 Equivalence vol. of NaOH: 20.00 pH at half-equivalence: 10,63 Balanced Chemical Equation: 1. Write the balanced equation for the reaction of ammonium sulfate and sodium hydroxide. (NH4)2SO4(s)? 2 N.0H(1) Nasa, () + 2NH3(-) + 2H2O 2. Write the balanced equation showing the ammonium ion acting...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
please i need help with these questions .. thanks so much A 24.5 mL sample of...
please i need help with these questions .. thanks so
much
A 24.5 mL sample of a 0.473 M aqueous nitrous acid solution is titrated with a 0.398 M aqueous sodium hydroxide solution. What is the pH at the start of the titration, before any sodium hydroxide has been added? pH = Submit Answer Retry Entire Group 4 more group attempts remaining A buffer solution is made that is 0.319 M in HNO2 and 0.319 M in KNO, If K,...
If you could help answer the blanks and check what I have using the graph and info sheet that would be great...
If you could help answer the blanks and check what I have using the
graph and info sheet that would be great.
Questions: 1. Write the chemical reaction that occurs during the titration. NaOH + HCL NaCl + H₂O 2. Locate in the experiment the definition of equivalence point. Write it here. 3. Read the Plotting the Results section in the experiment and locate the equivalence point on the curve you've drawn using the method described. Mark it on your...
need help with 7 and 8. also did I do number nine right?
• Write the ionization cautions for the dissociation of the diprotic acid, H,C,04. called oxalic acid. The following dissociation consta owing dissociation constants were located on a scrap piece of paper near the bottle of oxalic acid in the chemical room: 6.40 X 10 and 5.91 X 102. Assign cach equation you have written one of these values and explain your reasoning. H₂C₂O4 8. Given the K,...
EXPERIMENT 7 OXIDATION-REDUCTION TITRATIONS Name HOMEWORK EXERCISES Use the net ionic equations in problems I and 2 for problems 3-5 1. a. Write the balanced equations for the half reactions (ionic) and the overall net ionic equation for the titration of Mohr's salt with KMnO4. lonic MnO,: lonic Fe Net ionic: b. What is the standardized molarity of a KMnO4 solution if 36.31 mL are required to titrate 2.5010 g of Mohr's salt? 2. a. Write the balanced equations for...
Please help with d-g
TITRATIONS CHEM
2. 20.00 mL of 0.270 M HA (K. = 7.2 x 10-4) was titrated with 0.300 M sodium hydroxide a) Write the titration equation and calculate volume of NaOH needed to reach the equivalence point. mL b) At what volume of the titrant would pH=pKa? Why? c) pH at the equivalence point when the acid and base are neutralized will be -. choose one of these answer choices given below: i) equal to 7...
ACID-BASE TITRATIONS HOMEWORK Use the data in Option A to answer questions 1.5 1. Write a balanced equation for the lanced equation for the reaction of the acid and base indicated. CH₃CH2COOH(aq) + NOOH(aq) + CH₂CH₂COONa(aq) + H₂O(e) 2. Determine the volume of titrant added at the equivalence point. CH3CH₂ Cootrag) + NaOH(aa) CH₃CH aded at the equivalence point. SHOW ALL WORK! 19) + NaOH (aa) + CH₃ CH₂ COONacaq) + H2Ocel 3. Determine the pH of the solution at...
I need help!
68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K for HCN is 6.2 X 10-10 d. (CH3)2NHCI Kb for (CH3)3N is 5.3 X 105 e. (CH3)2NHCN f. Cu(CIO4)2 10. In aqueous solution, ammonia reacts according to the following INT 9. Consider an aqueous solution of each o neutral, acidic, or basic. If the solutions are acidic or basi -HOL an aqueous solution of each of the following salts. For each salt, state whether...
TITRATION: I did the first page, but I need help with the rest;
I'm lost. I uploaded the first page because you need to reference
is for the preceding questions.
Pre-Lab Assignment: Titration (Week 11) Name: Group: Chapter 8 Section 7 in your lecture textbook covers the calculations needed for this week's lab. They are very similar to calculations we covered in Chapter 7. Complete the following before coming to lab. It will be GRADED! Given the balanced equation: HBraq)...
Need help with 3 and 4 on calculations. some info is on top of
the page
Data Sheet for Lab #10 Name: Partner: Data/Observations: Volume of (NH), SO, used: Suomi initial pH of (NH4)2SO4 6.79 Equivalence vol. of NaOH: 20.00 pH at half-equivalence: 10,63 Balanced Chemical Equation: 1. Write the balanced equation for the reaction of ammonium sulfate and sodium hydroxide. (NH4)2SO4(s)? 2 N.0H(1) Nasa, () + 2NH3(-) + 2H2O 2. Write the balanced equation showing the ammonium ion acting...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
please i need help with these questions .. thanks so
much
A 24.5 mL sample of a 0.473 M aqueous nitrous acid solution is titrated with a 0.398 M aqueous sodium hydroxide solution. What is the pH at the start of the titration, before any sodium hydroxide has been added? pH = Submit Answer Retry Entire Group 4 more group attempts remaining A buffer solution is made that is 0.319 M in HNO2 and 0.319 M in KNO, If K,...
If you could help answer the blanks and check what I have using the
graph and info sheet that would be great.
Questions: 1. Write the chemical reaction that occurs during the titration. NaOH + HCL NaCl + H₂O 2. Locate in the experiment the definition of equivalence point. Write it here. 3. Read the Plotting the Results section in the experiment and locate the equivalence point on the curve you've drawn using the method described. Mark it on your...
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