THe Kb of ammonia is 1.76*10-5. What is the pH of a buffer which is prepared...
THe Kb of ammonia is 1.76*10-5. What is the pH of a buffer which is prepared by combining 50.0 mL of 1.21 M ammonia and 45.0 mL of 0.86 M ammonium nitrate?
A) 9.44
B) 9.05
C) 9.25
D) None of the above
E) 4.94
Homework Answers
![Henderson- Hanelbach equation pOH = pkz + log [NHG] INH₂] Here [NH] = 0.86 mol x 45 ml 45 mlt som [NHU J = 0.86*45 95 [NH3] =](http://img.homeworklib.com/questions/3b56c600-db9c-11eb-a0d7-c1bfadb5550c.png?x-oss-process=image/resize,w_560)
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THe Kb of ammonia is 1.76*10-5. What is the pH of a
buffer which is prepared...
A pH 9.56 buffer was prepared by dissolving 2.00 mole ammonia (Kb 1.8 x 10-5) and...
A pH 9.56 buffer was prepared by dissolving 2.00 mole ammonia (Kb 1.8 x 10-5) and 1.00 mol ammonium chloride in water to form a total solution volume of 1.00 L. Which is the final pH when 200.0 mL of the above buffer is treated with 10.0 mL 10.0 M NaOH? O A. 9.28 B. 9.86 C. 9.95 O D. 13.7
A buffer solution is prepared by combining 750.0 ml of 1.00 M of ammonia and 250...
A buffer solution is prepared by combining 750.0 ml of 1.00 M of ammonia and 250 ml of 1.00 M ammonium chloride. What is the pH of the buffer? ( Ka of NH4+=5.6*10^-10, Kb of NH3= 1.8*10^-5)
A buffer solution is prepared by combining 750.0 ml of 1.00 M of ammonia and 250...
A buffer solution is prepared by combining 750.0 ml of 1.00 M of ammonia and 250 ml of 1.00 M ammonium chloride. What is the pH of the buffer? ( Ka of NH4+=5.6*10^-10, Kb of NH3= 1.8*10^-5)
Ammonia (NH) is a weak base with Kb = 1.76 . 10-5. The pH of 0.300...
Ammonia (NH) is a weak base with Kb = 1.76 . 10-5. The pH of 0.300 M ammonia is:
Ammonia, NH3, is a weak monoprotic base with Kb = 1.76 × 10−5. Calculate the pH...
Ammonia, NH3, is a weak monoprotic base with Kb = 1.76 × 10−5. Calculate the pH of a 0.00779 M solution of this base. Report your answer to TWO places past the decimal.
2 CIO2 (aq) + 2 OH- (aq) - CIO3- (aq) + CO2- (aq) + H20 (1)...
2 CIO2 (aq) + 2 OH- (aq) - CIO3- (aq) + CO2- (aq) + H20 (1) Experiment Number Initial Rate (CIO2(M) [OH-] (M) (M/s) 0.060 0.030 0.0248 0.020 0.030 0.00276 0.020 0 .090 0.00828 3 1) What is the magnitude of the rate constant for the reaction? A) 1.15 x 104 B) 115 C) 4.6 D) 713 E) 230 2) Which reaction produces a decrease in the entropy of the system? A) 2C(s) + O2 (g) - 200 (8) B)...
. The Ka of nitrous acid is 4.0 × 10−4. What is the pH of a...
. The Ka of nitrous acid is 4.0 × 10−4. What is the pH of a buffer which is prepared by combining 50.0 mL of 1.00 M nitrous acid and 45.0 mL of 1.25 M sodium nitrite? The answer is 3.45 Please show the solution. Thank you.
What is the pH of a buffer prepared by mixing 20.00 mL of 0.0300 M ammonium chloride with 40.00 mL of 0.0450 M ammonia?...
What is the pH of a buffer prepared by mixing 20.00 mL of 0.0300 M ammonium chloride with 40.00 mL of 0.0450 M ammonia? What is the resulting pH if 1.00 mL of 0.10 M HCl is added to this solution?
A buffer solution is prepared by dissolving 1.600 g of ammonium chloride (NH,CI) into 100.00 mL...
A buffer solution is prepared by dissolving 1.600 g of ammonium chloride (NH,CI) into 100.00 mL of a 0.160 M solution of ammonia (NH3). The Kb of ammonia is 1.8 x 10-5. What is the pH of the solution?
Calculate the pH for 100. mL of a 0.500 M solution of ammonia, (NH3 Kb=1.8x10-5) being titrated...
Calculate the pH for 100. mL of a 0.500 M solution of ammonia, (NH3 Kb=1.8x10-5) being titrated with 0.500 M HCl at the following positions in the titration. i) The initial pH (before any HCl has been added). A. 9.44 B. 10.81 C. 11.48 D. 12.00 E. 11.75
A pH 9.56 buffer was prepared by dissolving 2.00 mole ammonia (Kb 1.8 x 10-5) and 1.00 mol ammonium chloride in water to form a total solution volume of 1.00 L. Which is the final pH when 200.0 mL of the above buffer is treated with 10.0 mL 10.0 M NaOH? O A. 9.28 B. 9.86 C. 9.95 O D. 13.7
Ammonia (NH) is a weak base with Kb = 1.76 . 10-5. The pH of 0.300 M ammonia is:
2 CIO2 (aq) + 2 OH- (aq) - CIO3- (aq) + CO2- (aq) + H20 (1) Experiment Number Initial Rate (CIO2(M) [OH-] (M) (M/s) 0.060 0.030 0.0248 0.020 0.030 0.00276 0.020 0 .090 0.00828 3 1) What is the magnitude of the rate constant for the reaction? A) 1.15 x 104 B) 115 C) 4.6 D) 713 E) 230 2) Which reaction produces a decrease in the entropy of the system? A) 2C(s) + O2 (g) - 200 (8) B)...
A buffer solution is prepared by dissolving 1.600 g of ammonium chloride (NH,CI) into 100.00 mL of a 0.160 M solution of ammonia (NH3). The Kb of ammonia is 1.8 x 10-5. What is the pH of the solution?
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