What is the p H of a solution containing 0.30
M lactic acid and 0.50 M of lactate ion (
K a for lactic
acid = 1.38 × 10 −4)?
What is the p H of a solution containing 0.30 M lactic acid and 0.50 M...
Lactic acid is a simple organic acid that is somewhat stronger than acetic acid. The lactate ion is the conjugate base of lactic acid and is one product of animal (including human) metabolism. Ka for lactic acid is 1.38 x 10-4. If the resting amount of lactate in blood is 2.0 mM and typical blood pH is 7.40, what is the lactic acid concentration in blood? Calculate the pH of a 0.0100 M solution of lactic acid. Calculate the pH...
Calculate the percent ionization of 0.115 M lactic acid in a solution containing 7.5×10^-3 M sodium lactate. Ka of lactic acid=1.4x10^-4
3. What is the pH of a buffer solution that is 0.266 M in lactic acid and 0.14 M in sodium lactate? The K, of lactic acid is 1.68 x 10-4.
Calculate the percent ionization of 0.115 M lactic acid in a solution containing 7.5×10−3 M sodium lactate.
What is the pH of a 1.00 L solution containing 0.295 M lactic acid, HC3H5O3 (pKa = 3.86) and 0.295 M sodium lactate, NaC3H5O3, upon the addition of 0.055 mol HCl? Assume no significant volume change occurs.
A lactic acid/lactate ion buffer solution contains 0.25 M HC3H5O3 and 0.85 M C3H5O3−, respectively. The Ka value of lactic acid is 1.4×10−4. Calculate the pH of this buffer.
2) Calculate the percent ionization of 0.130 M lactic acid in a solution containing 8.5×10−3 M sodium lactate. Express the percent ionization to two significant digits.
2)250.0 mL of a 0.375 M solution of lactic acid (HC:H:03) is titrated with a solution of 0.75 M NaOH. The K, for lactic acid is 1.38 x 104. (22 pts total) a) what is the pH before addition of NaOH? (Hint: what is the relevant equilibrium?) (4 pts) b) what is the total number of moles of acid? (2 pts) c) what volume of the NaOH solution is required to reach the equivalence point? (2 pts) d) what is...
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)
what is the ratio of lactic acid (Ka-1.37x10-4) to lactate in a solution with pH-3.967 1st attempt Ihl See Periodic Table Write your ratio out as a number containing a decimal. (lactic acid) lactate]