A buffer contains 0.015 mol of lactic acid (pKa = 3.86) and 0.080 mol of sodium lactate per liter. H₂C. OH Lactic acid OH Calculate the pH of the buffer. H₂C. OH Sodium lactate Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of the buffer. O Na+ Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of pure water. buffer pH: buffer pH change: water pH change: units. units
A buffer contains 0.015 mol of lactic acid (pKa = 3.86) and 0.080 mol of sodium lactate per liter. H₂C. OH Lactic acid OH Calculate the pH of the buffer. H₂C. OH Sodium lactate Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of the buffer. O Na+ Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of pure water. buffer pH: buffer pH change: water pH change: units. units
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 5SST
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Transcribed Image Text:A buffer contains 0.015 mol of lactic acid (pK₁ = 3.86) and 0.080 mol of sodium lactate per liter.
H₂C
OH
Lactic acid
OH
Calculate the pH of the buffer.
H₂C.
Calculate the change in pH after adding 9.0 mL of
0.10 M HCl to 1.0 L of the buffer.
O
OH
Sodium lactate
Calculate the change in pH after adding 9.0 mL of
0.10 M HCl to 1.0 L of pure water.
O Na+
buffer pH:
buffer pH change:
water pH change:
units
units
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