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Buffer

Q. How many grams of sodium lactate (NaC3H5O3) should be added to 1L of 0.150M lactic acid to form a buffer solution with a pH of 3.90? (Ka= 1.4*10^-4 for lactic acid)

Solved • Apr 7, 2020

Buffer

Q. What is the pH of the buffer solution containing .10 mol of acetic acid and .12 mol of sodium acetate in 45 mL after adding .03 mol of KOH?

Solved • Apr 7, 2020

Buffer

Q. A buffer solution is composed of 1.820 g of KH2PO4 and 4.587 g of Na2HPO4

Solved • Apr 6, 2020

Buffer

Q. Calculate the ph of a buffer that is 0.040 M HF and 0.020 M LiF. Ka is 3.5*10^-4

Solved • Apr 5, 2020

Buffer

Q. Calculate the expected pH of a solution of 10mL of 1M CH3COOH and 25 mL of 1M NaCH3COO.

Solved • Apr 4, 2020

Buffer

Q. Calculate the pKb of a buffer solution that is 0.15M in NH3 and 2.5X10-3M in NH4+ with a [OH-] = 2.3X10-7. Write the reaction equation for the reaction of the conjugate acid with water.

Solved • Apr 3, 2020