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Acid-Base Titrations 4. What is the pH of a solution after 22.5mL of 0.20 M HCI...
9. Acid-Base Titrations Acid-Base titrations are performed to determine the concentration of an acid or base...
9. Acid-Base Titrations Acid-Base titrations are performed to determine the concentration of an acid or base in a solution When the number of moles of in an acid is equal to the moles of in the base, water is formed and no acid or base is left unreacted. The solution has a pH of 7 and is called neutral. In an acid-base titration we use this concept to find out the concentration of an acid by adding base until all...
Exatnp ml of 0.20 M calculate the pH in the titratio NH, by 0.1 M HCI...
Exatnp ml of 0.20 M calculate the pH in the titratio NH, by 0.1 M HCI (NH, 1.8 Before any acid is added After the addition of 20 ml of At equivalence point After 90 ml of HCl
please help with this question. Extra credit Homework on Acid-Base Titration You can use the technique...
please help with this question.
Extra credit Homework on Acid-Base Titration You can use the technique of titration to determine the concentration of a mixture of sodium carbonate and sodium bicarbonate. Titration is performed using a solution with a known concentration of hydrochloric acid (HCI). During the titration, HCl reduces gradually the alkalinity of the solution until the pH is acid. The reaction occurs in two stages in the first part you titrate the total amount of carbonates present in...
What is the PH of a solution made by mixing 30.00 mL of 0.10 M HCI...
What is the PH of a solution made by mixing 30.00 mL of 0.10 M HCI with 40.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive. A) 12.15 B) 13.15 C) 1.85 D) 0.85 28) Which of the following titration result in a basic soltuion at the equilvalence point? 29) The balanced equation for the solubility equilibrium of Fe (OH)_2 is shown below. What is the equilibrium constant expression for the K_sp of (OH)_2?
What is the pH of the resulting solution if 95 mL of 0.514 M methylamine, CH3NH2,...
What is the pH of the resulting solution if 95 mL of 0.514 M methylamine, CH3NH2, is added to 115 mL of 0.85 M HCI? Assume that the volumes of the solutions are additive. K = 2.70 x 10 for CH NH. CH:NH, (aq) + H(aq) = CH NH3(aq) | CHINH, H CHỌNH What is the pH of a solution prepared by mixing 75 ml of 0.38 M acetic acid and 50 mL of 0.58 M sodium acetate are mixed....
5. 0.20 L of a 0.40 M HCI is totally reacted with 0.20 L of a...
5. 0.20 L of a 0.40 M HCI is totally reacted with 0.20 L of a NaOH solution in a Styrofoam coffee cup. The temperature of both solutions before mixing is 25.1 °C and 26.6 °C after. Assume that both the HCI and the NaOH solutions have a density of 1.00 g/mL, the heat absorbed by the cup is negligible, and the specific heat capacity of the solutions is 4.18 J/g C. Calculate the heat released per mol HCl in...
Weak-Acid Strong-Base Titrations. These next questions relate to a 25 mL aliquot of 0.35 M acetic acid (Ka = 1.77 x...
Weak-Acid Strong-Base Titrations. These next questions relate to a 25 mL aliquot of 0.35 M acetic acid (Ka = 1.77 x 10) that is titrated with 0.20 M potassium hydroxide (KOH). (f) What is the pH of the acetic acid solution before the titration begins? (g) What is the pH after 14 mL of 0.20 M KOH has been added to the solution? Use the Henderson-Hasselbalch equation. (h) What is the pH at the equivalence point?
Question 6 1 pts A 10.0 mL sample of 0.25 M NH3(aq) is titrated with 0.20 M HCl(aq) (adding HCl to NH3). Determine whic...
Question 6 1 pts A 10.0 mL sample of 0.25 M NH3(aq) is titrated with 0.20 M HCl(aq) (adding HCl to NH3). Determine which region on the titration curve the mixture produced is in, and the pH of the mixture at each volume of added acid. Ko of NH3 is 1.8 x 10-5 Henderson-Hasselbalch equation: pH = pka + log og HCI NH, NH3- Parta): 1) After adding 10 mL of the HCl solution, the mixture is (Select] the equivalence...
Monitosing.Acid-Base Titrations wih a pH Meter 3. student titrated 20.0 mL of 0.410M HCI with 0.320M...
Monitosing.Acid-Base Titrations wih a pH Meter 3. student titrated 20.0 mL of 0.410M HCI with 0.320M NaOH and collected the following data. Pre-Laboratory Assignment 1. Briefly explain: (a) why you must use caution when with HCI solutions 0.32 A working volume NaOH solution added, mLpH 0.39 0.46 0.54 0.62 0.70 0.78 0.87 0.96 1.07 1.19 1.35 1.56 1.93 2.09 2.35 3.06 11.40 11.80 12.00 12.20 12.30 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 24.50...
Unit 10 8. What is the pH of a 1.0 L buffer that consists of 00750...
Unit 10 8. What is the pH of a 1.0 L buffer that consists of 00750 MC,H,NH, and 0,0500 MC,HNH,Cl after the addition of 10.0 mL of 0.5 M HCl? a. Calculate moles of C,H,NH., C,H,NH,Cl, and HC b. Write a reaction of the HCl with the appropriate other species c. Set up a reaction table (will use moles and stoichiometry) using the reaction as a header. +Cl-(aq) Before Reacts After d. Looking at your "After" line, use that information...
9. Acid-Base Titrations Acid-Base titrations are performed to determine the concentration of an acid or base in a solution When the number of moles of in an acid is equal to the moles of in the base, water is formed and no acid or base is left unreacted. The solution has a pH of 7 and is called neutral. In an acid-base titration we use this concept to find out the concentration of an acid by adding base until all...
Exatnp ml of 0.20 M calculate the pH in the titratio NH, by 0.1 M HCI (NH, 1.8 Before any acid is added After the addition of 20 ml of At equivalence point After 90 ml of HCl
please help with this question.
Extra credit Homework on Acid-Base Titration You can use the technique of titration to determine the concentration of a mixture of sodium carbonate and sodium bicarbonate. Titration is performed using a solution with a known concentration of hydrochloric acid (HCI). During the titration, HCl reduces gradually the alkalinity of the solution until the pH is acid. The reaction occurs in two stages in the first part you titrate the total amount of carbonates present in...
What is the PH of a solution made by mixing 30.00 mL of 0.10 M HCI with 40.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive. A) 12.15 B) 13.15 C) 1.85 D) 0.85 28) Which of the following titration result in a basic soltuion at the equilvalence point? 29) The balanced equation for the solubility equilibrium of Fe (OH)_2 is shown below. What is the equilibrium constant expression for the K_sp of (OH)_2?
What is the pH of the resulting solution if 95 mL of 0.514 M methylamine, CH3NH2, is added to 115 mL of 0.85 M HCI? Assume that the volumes of the solutions are additive. K = 2.70 x 10 for CH NH. CH:NH, (aq) + H(aq) = CH NH3(aq) | CHINH, H CHỌNH What is the pH of a solution prepared by mixing 75 ml of 0.38 M acetic acid and 50 mL of 0.58 M sodium acetate are mixed....
5. 0.20 L of a 0.40 M HCI is totally reacted with 0.20 L of a NaOH solution in a Styrofoam coffee cup. The temperature of both solutions before mixing is 25.1 °C and 26.6 °C after. Assume that both the HCI and the NaOH solutions have a density of 1.00 g/mL, the heat absorbed by the cup is negligible, and the specific heat capacity of the solutions is 4.18 J/g C. Calculate the heat released per mol HCl in...
Weak-Acid Strong-Base Titrations. These next questions relate to a 25 mL aliquot of 0.35 M acetic acid (Ka = 1.77 x 10) that is titrated with 0.20 M potassium hydroxide (KOH). (f) What is the pH of the acetic acid solution before the titration begins? (g) What is the pH after 14 mL of 0.20 M KOH has been added to the solution? Use the Henderson-Hasselbalch equation. (h) What is the pH at the equivalence point?
Question 6 1 pts A 10.0 mL sample of 0.25 M NH3(aq) is titrated with 0.20 M HCl(aq) (adding HCl to NH3). Determine which region on the titration curve the mixture produced is in, and the pH of the mixture at each volume of added acid. Ko of NH3 is 1.8 x 10-5 Henderson-Hasselbalch equation: pH = pka + log og HCI NH, NH3- Parta): 1) After adding 10 mL of the HCl solution, the mixture is (Select] the equivalence...
Monitosing.Acid-Base Titrations wih a pH Meter 3. student titrated 20.0 mL of 0.410M HCI with 0.320M NaOH and collected the following data. Pre-Laboratory Assignment 1. Briefly explain: (a) why you must use caution when with HCI solutions 0.32 A working volume NaOH solution added, mLpH 0.39 0.46 0.54 0.62 0.70 0.78 0.87 0.96 1.07 1.19 1.35 1.56 1.93 2.09 2.35 3.06 11.40 11.80 12.00 12.20 12.30 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 24.50...
Unit 10 8. What is the pH of a 1.0 L buffer that consists of 00750 MC,H,NH, and 0,0500 MC,HNH,Cl after the addition of 10.0 mL of 0.5 M HCl? a. Calculate moles of C,H,NH., C,H,NH,Cl, and HC b. Write a reaction of the HCl with the appropriate other species c. Set up a reaction table (will use moles and stoichiometry) using the reaction as a header. +Cl-(aq) Before Reacts After d. Looking at your "After" line, use that information...
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