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Question 26 of 31 Sub How many moles of HCl need to be added to 200.0...
How many moles of HCl need to be added to 200.0 mL of a 0.200 M solution of NaF to make a buffer with a pH of 3.60? (Ka for HF is 6.8 x 10-4)
How many moles of HCl need to be added to 200.0 mL of a 0.200 M solution of NaF to make a buffer with a pH of 3.60? (Ka for HF is 6.8 x 10-4)
Question 9 of 9 Submit How many moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of HF to make a buffer with a pH of 3.30? (Ka for HF is 6.8 x 10-4) | mol 7 8 +/- 1 +/- 0 x 100
How many moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of HF to make a buffer with a pH of 3.50? (Ka for HF is 6.8 x 10-4)
How many moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of HF to make a buffer with a pH of 2.70? (ka for HF is 6.8 x 10-4) mol 1 | 2 | 3 7 8 9 +/- x 100 Tap here or pull up for additional resources
Question 7 of 9 How many moles of CH3NH3Cl need to be added to 200.0 mL of a 0.500 M solution of CH3NH2 (Kb for CH3NH2 is 4.4 * 10-4) to make a buffer with a pH of 11.60? mol C +/- 0 x 100
How many moles of CH3NH2CI need to be added to 200.0 mL of a 0.500 M solution of CH3NH2 (Kb for CH3NH, is 4.4 x 10-4) to make a buffer with a pH of 10.60?
What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.030 mol of HCl were added?
How many mL of a 4.00 M HCl solution must be added to 250 mL of a 0.250 M NH3 solution to make a buffer with pH = 9.10? Look up Ka or Kb in a suitable source.
4) Answer the following a) How many moles of H were added to the buffers by adding 0.50 mL of 1.0 M HCl? a b) How many moles of conjugate base (A-) are present in 40 mL of the 0.10 M Buffer at pH 7.5? c) How many mol es of conjugate base (A-) are present in 40 mL of the 0.10 M Buffer at pH 6.0? d) Use the Henderson-Hasselbalch equation to predict how much the pH should change...