Homework Answers
Complete Dissociation of H2SO4 and
calculation of pH of HBr
Add Answer to:
5 & 6
1014 3.70xie - 2.7 5. Write the two reactions for the complete dissociation...
please help with 5 and 6 showing work 3. Write the two reactions for the complete...
please help with 5 and 6 showing work
3. Write the two reactions for the complete dissociation of H.SO., a polyprotic acid. capisy 6. Calculate the pH of a 0.015 M solution of HBr. Circle your answer. (2pts)
7. If H,PO, has K, -6.83 x 10, and Hco, has K,-5.8x 10", which is the...
7. If H,PO, has K, -6.83 x 10, and Hco, has K,-5.8x 10", which is the weaker acid? Circle your answer and explain how you know. (Ipt 8. For a solution with pH 9.74, calculate the following: (3pa) [H'] [OH] pOH- 9. (2pas total) a. A solution of a weak acid with concentration 0.11 M. is 8.8 % ionized. Calculate its K, value. K, b. Calculate the K, value of a 0.060 M solution of a monoprotic acid with [H']...
3. Calculate and insert the proper values to complete the following table: 8pts) [H+M pH Acidic...
3. Calculate and insert the proper values to complete the following table: 8pts) [H+M pH Acidic or Basic [OH-M Solution 8.21 POH 1.78 x 10 3.70 x 10-2 4. Give definitions of an Arrhenius acid, a Bronsted-Lowry acid, and a Lewis acid. (3pts) 5. Write the two reactions for the complete dissociation of H.SO., a polyprotic acid. 2pts) 6. Calculate the pH of a 0.015 M solution of HBr. Circle your answer. (2pts)
The acid dissociation constant K, of hypobromous acid (HBrO) is 2.3 * 10-9 Calculate the pH...
The acid dissociation constant K, of hypobromous acid (HBrO) is 2.3 * 10-9 Calculate the pH of a 2.7 M solution of hypobromous acid. Round your answer to 1 decimal place. pH = X 6 ?
A solution is prepared containing 5 times 10^-6 M selenous acid (H_2 SeO_3^0) at pH 7.8...
A solution is prepared containing 5 times 10^-6 M selenous acid (H_2 SeO_3^0) at pH 7.8 and 25 degree C Write out stepwise mass action reactions for the first and second acid-dissociation reactions. The acid constants are 2.63 (pK_a1) and 8.40 (pK_a2). Write out the overall mass action reaction for complete dissociation of selenous acid and calculate the overall dissociation constant. Write out the mass balance equation for selenium, assuming only selenous acid and its conjugate bases are present in...
(8 pts) Comparing dissociation constants, circle the strongest base in the following pairs. You must justify...
(8 pts) Comparing dissociation constants, circle the strongest base in the following pairs. You must justify your reasoning and show any calculations to receive credit. 5. Circle the strongest base in the pair: A. CsHsN and NHs and (pyridine and ammonia bases) Justification: B. PO. and AsO. and (phosphate and arsenate) Justification: 6. (10 pts) Calculate Ka of a weak acid given that a 2.3 M HA solution has a pH of 1.55. Ka: 7, (10 pts) Calculate the pH...
The acid dissociation Ka of propionic acid C2H5CO2H is ×1.310−5. Calculate the pH of a ×1.810−4M...
The acid dissociation Ka of propionic acid C2H5CO2H is ×1.310−5.
Calculate the pH of a ×1.810−4M aqueous solution of propionic acid.
Round your answer to 2 decimal places.
The acid dissociation K, of propionic acid (C2H3COH) is 1.3 x 10–. Calculate the pH of a 1.8 x 10 *Maqueous solution of propionic acid. Round your answer to 2 decimal places. xs ?
SHORT ANSWER: 11. Hypobromous acid, HBO pobromous acid. HR is a weak acid. Its acid dissociation...
SHORT ANSWER: 11. Hypobromous acid, HBO pobromous acid. HR is a weak acid. Its acid dissociation constant. K is 2.5 x 10 (20 points) a) Calculate the [H") of a 0.14-molar solution of HBrO. b) Write the correctly balanced net ionic equation for the reaction that occurs NaBro is dissolved in water and calculate the numerical value of the equilibrium constant for this reaction. c) Calculate the pH of a solution made by combining 40.0 milliliters of 0.14-molar HBrO and...
6. Write the specific chemical equation for the dissociation of Sr(OH)2. Calculate the pH of a...
6. Write the specific chemical equation for the dissociation of Sr(OH)2. Calculate the pH of a 0.0745 M solution of Sr(OH)2. Is the solution acidic, basic, or neutral? (6 points)
i need help you mix equal concentrations of the following reactants and products, will the reaction...
i need help
you mix equal concentrations of the following reactants and products, will the reaction proceed to the left or to the right? Explain your answer briefly. (6 pts) (a) HF (aq) + NO3(a) HNO, (aq) + F (b) NH. (aq) + CO2(aq) HCO3' (aq) + NH3(aq) 17. The concentration of OH in human blood is 2.24 x 10-7M. Calculate the concentration of H30 ions and classify the solution as acidic, neutral or basic (5 pts) 18. (a) What...
please help with 5 and 6 showing work
3. Write the two reactions for the complete dissociation of H.SO., a polyprotic acid. capisy 6. Calculate the pH of a 0.015 M solution of HBr. Circle your answer. (2pts)
7. If H,PO, has K, -6.83 x 10, and Hco, has K,-5.8x 10", which is the weaker acid? Circle your answer and explain how you know. (Ipt 8. For a solution with pH 9.74, calculate the following: (3pa) [H'] [OH] pOH- 9. (2pas total) a. A solution of a weak acid with concentration 0.11 M. is 8.8 % ionized. Calculate its K, value. K, b. Calculate the K, value of a 0.060 M solution of a monoprotic acid with [H']...
3. Calculate and insert the proper values to complete the following table: 8pts) [H+M pH Acidic or Basic [OH-M Solution 8.21 POH 1.78 x 10 3.70 x 10-2 4. Give definitions of an Arrhenius acid, a Bronsted-Lowry acid, and a Lewis acid. (3pts) 5. Write the two reactions for the complete dissociation of H.SO., a polyprotic acid. 2pts) 6. Calculate the pH of a 0.015 M solution of HBr. Circle your answer. (2pts)
The acid dissociation constant K, of hypobromous acid (HBrO) is 2.3 * 10-9 Calculate the pH of a 2.7 M solution of hypobromous acid. Round your answer to 1 decimal place. pH = X 6 ?
A solution is prepared containing 5 times 10^-6 M selenous acid (H_2 SeO_3^0) at pH 7.8 and 25 degree C Write out stepwise mass action reactions for the first and second acid-dissociation reactions. The acid constants are 2.63 (pK_a1) and 8.40 (pK_a2). Write out the overall mass action reaction for complete dissociation of selenous acid and calculate the overall dissociation constant. Write out the mass balance equation for selenium, assuming only selenous acid and its conjugate bases are present in...
(8 pts) Comparing dissociation constants, circle the strongest base in the following pairs. You must justify your reasoning and show any calculations to receive credit. 5. Circle the strongest base in the pair: A. CsHsN and NHs and (pyridine and ammonia bases) Justification: B. PO. and AsO. and (phosphate and arsenate) Justification: 6. (10 pts) Calculate Ka of a weak acid given that a 2.3 M HA solution has a pH of 1.55. Ka: 7, (10 pts) Calculate the pH...
The acid dissociation Ka of propionic acid C2H5CO2H is ×1.310−5.
Calculate the pH of a ×1.810−4M aqueous solution of propionic acid.
Round your answer to 2 decimal places.
The acid dissociation K, of propionic acid (C2H3COH) is 1.3 x 10–. Calculate the pH of a 1.8 x 10 *Maqueous solution of propionic acid. Round your answer to 2 decimal places. xs ?
SHORT ANSWER: 11. Hypobromous acid, HBO pobromous acid. HR is a weak acid. Its acid dissociation constant. K is 2.5 x 10 (20 points) a) Calculate the [H") of a 0.14-molar solution of HBrO. b) Write the correctly balanced net ionic equation for the reaction that occurs NaBro is dissolved in water and calculate the numerical value of the equilibrium constant for this reaction. c) Calculate the pH of a solution made by combining 40.0 milliliters of 0.14-molar HBrO and...
6. Write the specific chemical equation for the dissociation of Sr(OH)2. Calculate the pH of a 0.0745 M solution of Sr(OH)2. Is the solution acidic, basic, or neutral? (6 points)
i need help
you mix equal concentrations of the following reactants and products, will the reaction proceed to the left or to the right? Explain your answer briefly. (6 pts) (a) HF (aq) + NO3(a) HNO, (aq) + F (b) NH. (aq) + CO2(aq) HCO3' (aq) + NH3(aq) 17. The concentration of OH in human blood is 2.24 x 10-7M. Calculate the concentration of H30 ions and classify the solution as acidic, neutral or basic (5 pts) 18. (a) What...
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