Lactic acid has one acidic proton . What is the pH of a 0.10 M solution of this acid? Ka =1.4 x10-4 for lactic acid ????/
Lactic acid has one acidic proton . What is the pH of a 0.10 M solution...
Lactic acid (CH3CH(OH)COOH) has one acidic hydrogen. A 0.10 M solution of lactic acid has a pH of 2.44. Calculate Ka. Express your answer using two significant figures. Ka= Please show all work thanks
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)
10. (a) Determine the pH of 0.10 M lactic acid (HC3H5O3) (b) What is the pH of a buffer that is 0.12 M lactic acid and 0.10 M sodium lactate (NaC2H5O3)? For lactic acid. Ka - 1.4 x 104. (10) 11. Hydrazine, N2H4, is a weak base. Write the equation for the reaction of hydrazine with water and write the expression for Kb. (5) Na Hj
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
2. A 0.10 M solution of lactic acid, a weak monoprotic acid of to have a pH of 2.43. What is the value of Ka for the acid and the %
Lactic acid (CH3CH(OH)COOH) has only one acidic hydrogen which can dissociate as follows: CH3CH(OH)COOH (aq) + H20 (1) --- H30+ (aq) + CH3CH(OH)COO (aq) A 0.10 M solution of lactic acid has a pH of 2.44. Calculate the Ka. Ка? 10^
a) calculate the ph of a .20 M aqueous solution of lactic acid CH3CH(OH)COOH, the value of ka is 1.4 x 10^-4 M and it is at 25c b) what is the molarity of unreacted lactic acid in the solution?
What are the concentrations of all the solute species in 1.05 M lactic acid, HC3H5O2? What is the pH of the solution? This acid has a Ka = 1.4 × 10-4.
3a. Calculate the pH of a 7.8x10 * M HCl solution. 3b. Is this solution acidic, basic or neutral? 4a. Determine the pH of 1.3 x 10 M NaOH. 4b. Is this solution acidic, basic or neutral? 5a. A 0.1 M NaHCO3 solution has a pH of 8.400. What is the [H3O'? 5b. Is this solution acidic, basic or neutral? 6. Determine whether the following statements are true or false regarding a 0,010 M solution of the strong acid HNO3:...
27. What is the pH of an aqueous solution that contains 0.35 M of lactic acid, HC3H5O2, (Ka = 4.4 X 10 -4 ) and 0.55 M of Nat C3H5O2 - ? a. 2.77 b. 3.55 C. 4.65 d. 7.35 e. 5.89