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QUESTION 8 The compound ammonia, NH3, is a weak base when dissolved...
1. Calculate the pH of the following solutions. Show all of your work. a. 0.0050 M...
1. Calculate the pH of the following solutions. Show all of your work. a. 0.0050 M nitric acid, HNO3 b. 0.50 M hydrocyanic acid, HCN Ka = 4.0 x 10-10 2. A student was given the following problem: Calculate the pH of a 0.50 Mama bromide (NHaBr) solution if the Kb of NH3 is 1.8 x 10. The student provided the fo work. Identify the error(s) and calculate the correct pH. NH; (aq) + H20 (1) = NH3 (aq) +...
Question 53 (1 point) Ammonia , NH3, is a stronger base than the acetate ion, CH3COO"....
Question 53 (1 point) Ammonia , NH3, is a stronger base than the acetate ion, CH3COO". When acetic acid, CH3COOH, reacts with ammonia, NH3, what species are present in the solution in the largest amount? CH3COOH + NH3 CH3COO + NHA acetic acid, CH3COOH, and ammonia, NH3 acetic acid, CH3COOH, and ammonium, NH4* acetate ion, CH3C00, and ammonia, NH3 acetate ion, CH3C00", and ammonium ion, NHA
a) What is the pH of a solution that consist of 0.20 M ammonia, NH3, and...
a) What is the pH of a solution that consist of 0.20 M ammonia, NH3, and 0.20 M ammonium choride, NH4Cl? (Kb for ammonia is 1.8 x 10-5) b) 1.25 g of benzoic acid (C6H5CO2H) and 1.25 g of sodium benzoate (NaC6H5CO2) are dissolved in enough water to make 250 mL solution. Calculate the pH of the solution using the Handerson-Hasselbach equation (Ka for benzoic acid is 6.3 x 10-5). c) What is the pH after adding 82 mg of...
9. When a weak base such as ammonia, NH3, is dissolved in water, what are ALL...
9. When a weak base such as ammonia, NH3, is dissolved in water, what are ALL the species that exist in solution. Rearrange your list from the highest concentration to the lowest concentration. (Hint: H2O has the highest concentration) 10. In question 9, how many unknowns (don't count water) are there and how many equations are needed to determine the concentrations of those unknowns?
This problem deals with Acid-base titrations and pH scale for a weak acid and a weak...
This problem deals with Acid-base titrations and pH scale for a weak acid and a weak base. Calculate the pH of the solution that results from adding 7.5 [ml] of Ammonia (NH3) to a beaker that contains, 100 ml of distilled water and 15 ml of 0.1 M Acetic acid (HC2H3O2). A buret containing 50 mL of 0.1 M Ammonia (NH3) is being used as the titrant. The beaker containing 100 ml of distilled water, and 15 ml of 0.1...
Use the following graph to find the Ka, for Acetic Acid, a weak acid titrated against...
Use the following graph to find the Ka, for Acetic Acid, a weak acid titrated against sodium hydroxide. Hd 5 10 15 20 Volume of 0.1 M NaOH added in mL 35 40 45 Calculated the theoretical pH of this solution, given the condition of 0.674g of Na HPO, 7H, dissolved in 30mL of distilled water. HPO4% (aq) + H20 (1) → POA? (aq) + H30 (aq) K =4.8x10 13 HPO.? (aq) + H20 (1) ► H,PO4 (aq) + OH(aq)...
Ammonia, NH3, is a weak base because a proton can readily bind to the lone pair...
Ammonia, NH3, is a weak base because a proton can readily bind to the lone pair on the nitrogen to produce the ammonium ion, NH4+. Organic compounds that contain nitrogen are also weak bases for the same reason. Amines are compounds derived from ammonia in which one or more of the hydrogens are replaced by a carbon-containing group (R). The simplest amine is methylamine in which is a "methyl" group, CH3. Its kb is 4.4 X 10-4. Write the balanced...
a) b) c) d) If the Kb of a weak acid is 2.9 10*, the K,...
a)
b)
c)
d)
If the Kb of a weak acid is 2.9 10*, the K, of its conjugate acid must be which of the following? 2.9.10 6.46 7.54 3.4 10- The hydronium ion concentration of a 0.50 mol/L solution of hydrocyanic acid, HCN(aq), is 1.4 x 10-5 mol/L. Use Weak Acid Info 16.1 to answer the following question. The Ka for hydrocyanic acid is: 3.9 x 10-10 1.4 x 10-5 5.0 x 10-2 6.2 x 10-10 An acetic acid-sodium...
please answer 23 and 24 *please show all work and calculations * given temperature foart em...
please answer 23 and 24
*please show all work and calculations *
given temperature foart em to reach equilibrium e con 15) Pure Solic and pure liquide are excluded from equilibrium constant pre Cheric £69 kg 19) If a reaction is endothermic, the reaction temperature results in an ineren 20) A solution of ammonia is 2.0% ionized at 25.0 °C. What was the original concentration in M) of the ammonia solution? The Kb at 25.0 °C for ammonia is 1.8...
Ammonia react with water as shown in the following equation: NH3(aq) + H2O(l) NH4+(aq) +...
Ammonia react with water as shown in the following equation: NH3(aq) + H2O(l) NH4+(aq) + OH-(aq) Kb = 1.77 x 10-5 and Ka = 5.65 x 10-10 a) Calculate the pH of the 0.030 M NH3 solution (Use a labeled ICE table) b) Calculate the pH of the solution at the equivalent point (when equal amount of acid is added. Assume the volume doubles). (Use a labeled ICE table) c) Over which pH range (actual numbers) do you expect...
1. Calculate the pH of the following solutions. Show all of your work. a. 0.0050 M nitric acid, HNO3 b. 0.50 M hydrocyanic acid, HCN Ka = 4.0 x 10-10 2. A student was given the following problem: Calculate the pH of a 0.50 Mama bromide (NHaBr) solution if the Kb of NH3 is 1.8 x 10. The student provided the fo work. Identify the error(s) and calculate the correct pH. NH; (aq) + H20 (1) = NH3 (aq) +...
Question 53 (1 point) Ammonia , NH3, is a stronger base than the acetate ion, CH3COO". When acetic acid, CH3COOH, reacts with ammonia, NH3, what species are present in the solution in the largest amount? CH3COOH + NH3 CH3COO + NHA acetic acid, CH3COOH, and ammonia, NH3 acetic acid, CH3COOH, and ammonium, NH4* acetate ion, CH3C00, and ammonia, NH3 acetate ion, CH3C00", and ammonium ion, NHA
9. When a weak base such as ammonia, NH3, is dissolved in water, what are ALL the species that exist in solution. Rearrange your list from the highest concentration to the lowest concentration. (Hint: H2O has the highest concentration) 10. In question 9, how many unknowns (don't count water) are there and how many equations are needed to determine the concentrations of those unknowns?
Use the following graph to find the Ka, for Acetic Acid, a weak acid titrated against sodium hydroxide. Hd 5 10 15 20 Volume of 0.1 M NaOH added in mL 35 40 45 Calculated the theoretical pH of this solution, given the condition of 0.674g of Na HPO, 7H, dissolved in 30mL of distilled water. HPO4% (aq) + H20 (1) → POA? (aq) + H30 (aq) K =4.8x10 13 HPO.? (aq) + H20 (1) ► H,PO4 (aq) + OH(aq)...
Ammonia, NH3, is a weak base because a proton can readily bind to the lone pair on the nitrogen to produce the ammonium ion, NH4+. Organic compounds that contain nitrogen are also weak bases for the same reason. Amines are compounds derived from ammonia in which one or more of the hydrogens are replaced by a carbon-containing group (R). The simplest amine is methylamine in which is a "methyl" group, CH3. Its kb is 4.4 X 10-4. Write the balanced...
a)
b)
c)
d)
If the Kb of a weak acid is 2.9 10*, the K, of its conjugate acid must be which of the following? 2.9.10 6.46 7.54 3.4 10- The hydronium ion concentration of a 0.50 mol/L solution of hydrocyanic acid, HCN(aq), is 1.4 x 10-5 mol/L. Use Weak Acid Info 16.1 to answer the following question. The Ka for hydrocyanic acid is: 3.9 x 10-10 1.4 x 10-5 5.0 x 10-2 6.2 x 10-10 An acetic acid-sodium...
please answer 23 and 24
*please show all work and calculations *
given temperature foart em to reach equilibrium e con 15) Pure Solic and pure liquide are excluded from equilibrium constant pre Cheric £69 kg 19) If a reaction is endothermic, the reaction temperature results in an ineren 20) A solution of ammonia is 2.0% ionized at 25.0 °C. What was the original concentration in M) of the ammonia solution? The Kb at 25.0 °C for ammonia is 1.8...
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