A buffer made with 100.00 mL of 0.95 M lactic acid (Ka=1.4x10-4) and 200.00 mL of 0.50 M lactate has a final volume of 1.0 L. What is the pH of this buffer?
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A buffer made with 100.00 mL of 0.95 M lactic acid (Ka=1.4x10-4) and 200.00 mL of...
10Consider a buffer prepared by mixing 15 mL of a .300 M lactic acid (Ka= 1.4x10^-4) and 15 mL of .300 M potassium lactate. Calculate the pH. 2) Calculate the pH of a buffer when 15mL of a 0.150 M sodium hydroxide is mixed with 15 mL of a .300 M lactic acid
A buffer made with 150.00 mL of 0.20 M formic acid (Ka=1.8x10-4) and 250.00 mL of 0.10 M formate has a final volume of 1.0 L. What is the pH after 6.00 mL of 1.0 M HCL is added to the buffer?
What is the pH of a buffer that is 0.12 M in lactic acid (HC3H503) and 0.10 m in sodium lactate? For lactic acid, Ka= 1.4x10-4 a 3.77 6.3.85 OC 10.33 d. 1.20
A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the lactate ion (C3H5O3-) are both 0.600 M. What is the resulting pH if 10.0 mL of 1.00 M HCL is added to 0.500 of the buffer solution? (ka of HC3H5O3= 1.4 x 10^-4)
A buffer solution is made such that the initial concentrations of lactic acid (HC3Hs03) and the lactate ion (C3HO) are 0.600 M and 0 620 м, respectively What is the resulting pH it 100 0 mL of 0 200 M potassium hydroxide is added to 0300 L of the buffer solution? (The Ka of HCJHs03 is 1.4x 10) Answer Check
The Ka of lactic acid, HC3H5O3, is 1.4 ✕ 10−4. (a) Suppose buffer #1 is prepared using 40.0 mL 0.1 M HC3H5O3 and 60.0 mL 0.1 M C3H5O3− to give a final volume of 100.0 mL. What is the pH of this buffer? WebAssign will check your answer for the correct number of significant figures. 4.19 Incorrect: Your answer is incorrect. (b) Suppose a buffer #2 is prepared using 60.0 mL 0.1 M HC3H5O3 and 40.0 mL 0.1 M C3H5O3−...
2. Calculate the pH of a 0.0045 M lactic acid solution. HC 04, Ka = 1.4x10-4
A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate per liter. (a) Calculate the pH of the buffer. (b) Calculate the change in pH when 5.0 mL of 0.50 M HCl is added to 1.0 L of the buffer. (c) What pH change would you expect if you added the same quantity of HCl to 1.0 L of pure water?
2. (a) Determine the pH of 0.10 M lactic acid (HC3HSO3) (b) What is the pH of a buffer that is 0.12 M. lactic acid and 0.10 M sodium lactate (NaC3H5O3)? For lactic acid. Ka = 1.4 x 10-4. (10)
A buffer is prepared by adding 0.15 mol of lactic acid, CH3CHOHCOOH, and 0.20 mol of sodium lactate, Na+CH3CHOHCOO - , to sufficient water to make 1.0 L of buffer solution. The Ka of lactic acid is 1.4 x 10 - 4. Calculate the pH of the buffer.