What is the ph of the of a buffer solution by adding 15.0 g of ammonium chloride to 5 L of 0.20 M ammonia= answer is 9.8 but i need help with
what is the ph of the buffer after 90.0mL of 2.00M HCL are added answer is 9.50 help?
what is the ph of the buffer after 15.00 g of naoh are added? answer is 12.28
What is the ph of the of a buffer solution by adding 15.0 g of ammonium...
4) A buffer solution is prepared by dissolving 5.40 g of ammonium chloride in 20.0 mL of water a mixing it with 35.0 mL of 10.0 Mammonia. Ky for ammonia is 1.8x10° a) What is the pH of this buffer solution b) This buffer solution is diluted with water to volume of 100.0 mL and 5.00 mL of 0.500 M HCl are added to the 100.0 mL of buffer. What is the expected pH of the buffer solution after the...
What is the most efficient way to increase the pH and buffer capacity of an ammonium (NH4+) /ammonia (NH3) buffer? dilute the buffer add ammonium chloride add ammonia add NaOH(aq) add HCl(aq)
A buffer solution contains 0.229 M ammonium chloride and 0.457 M ammonia. If 0.0568 moles of hydroiodic acid are added to 250 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume does not change upon adding hydroiodic acid) pH = Submit Answer Retry Entire Group 9 more group attempts remaining A buffer solution contains 0.443 M ammonium chloride and 0.314 M ammonia. If 0.0313 moles of potassium hydroxide are added to 225...
What is the pH of a solution containing 0.50 M ammonia and 0.50 M ammonium chloride? What will the pH be after 25mL of 0.20 M of hydrochloric acid has been added to 100.0mL of the solution containing the ammonia and ammonium chloride? What will the pH be after 18mL of 0.25 M of lithium hydroxide has been added to 100.0mL of the solution containing the ammonia and ammonium chloride? The ionization constant for ammonia is 1.8x10-5.
Question 3 (1 point) A buffer solution is made by adding 15.0 mL of a 0.50 M Na2CO3 solution to 15.0 mL of a 0.50 M NaHCO3 solution in a test tube. 2.4 mL of a 1.0 M HCl solution is added to this buffer solution. What is the final pH of the solution in the test tube? H2CO3 has Ka1 = 4.3×10-7 and Ka2 = 5.6×10-11. Question 4 (1 point) A buffer solution is made by adding 10.0 mL...
Part A: What is the pH of a buffer prepared by adding 0.708 mol of the weak acid HA to 0.406 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10−7. Part B:What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid. Part C: What is the pH after 0.195 mol of NaOH is added to the...
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?
Question 15 (2 points) A basic buffer is prepared by adding 0.4870 g of NH4Cl to 1.00 L of 0.2799 M. NH3. Kb (NH3) = 1.8 x 10-5. Calculate the pH of the buffer. Provide your answer to two places after the decimal. Your Answer: Answer Hide hint for Question 15 You must convert the mass of ammonium chloride into molarity. Also, you need to calculate the K, of ammonium ion from the Ky value of ammonia.
Question 13 (2 points) A basic buffer is prepared by adding 0.7185 g of NH4Cl to 1.00 L of 0.4490 M NH3. Kb (NH3) = 1.8 x 10-5. Calculate the pH of the buffer. Provide your answer to two places after the decimal. Your Answer: Answer Hide hint for Qugstion 13 You must convert the mass of ammonium chloride into molarity. Also, you need to calculate the K, of ammonium ion from the Kb value of ammonia.
A 1.0 L buffer solution contains 0.74 moles of ammonia 0.74 moles of ammonium chloride. Kb = 1.8 x 10—5 . Calculate the pH of this buffer after the addition of 0.10 moles of NaOH.