
Lactic acid (CH3CH(OH)COOH) has only one acidic hydrogen which can dissociate as follows: CH3CH(OH)COOH (aq) +...
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
Lactic acid, HC3H5O3, has one acidic Hydrogen. A 0.10 M solution of lactic acid has a pH of 2.44. Calculate Ka. ( 4 points )
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?
QUESTION 3 Lactic acid, CH3CH(OH)cooH, is a weak acid with Ka 1.4x10-4. The pH of a 0.250 M solution of lactic acid is and percent dissociation of this acid is %. (Fill in the blanks. Show the numbers only. Report both of the numbers with 2 significant figures)
A buffer is made by adding 0.350 mol lactic acid, CH3CH(OH)COOH, and 0.350 mol potassium lactate, CH3CH(OH)COOK, to enough water to make 1.10 L of solution. The pKa is equal to 4.24. Calculate the pH of this solution after 3.0 mL of 3.0 M KOH is added to the buffer.
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 ????/
10 ml containing 1.0 mmole of lactic acid solution, CH3CH(OH)COOH, (pKa=3.86) was titrated with NaOH solution up to a total volume of 100 ml a. what is the concentration of the base solution required for a full neutralization of the lactic acid? b. what is the pH at the equivalent point? c. what will be the pH of the solution obtained after adding 0.2 mmole of NaOH(S) (SOLID!)
A 0.085 M solution of phenylacetic acid (HPac) has a pH of 2.68. Calculate the Ka value of this acid based on the equation: HPAC (aq) + H20 (1) - PAC (aq) + H30+ (aq) Ka *10^
Magnesium hydroxide is one of the components of hard water buildup. CLR, a common commercial product used to remove hard water buildup, contains lactic acid (CH3CH(OH)COOH). CLR works to remove hard water build up by a chemical reaction that dissolves the compounds. In this case, the reaction that occurs is: → 2H2O() + Mg(OH)2(s) + 2 CH3 CH(OH)COOH(aq) Mg(CH3 CH(OH)COO)2(aq) Depending on the mixture, CLR contains 12-18% by mass of lactic acid (1.4-2.0 M), and is commonly sold in 28...
Magnesium hydroxide is one of the components of hard water buildup. CLR, a common commercial product used to remove hard water buildup, contains lactic acid (CH3CH(OH)COOH). CLR works to remove hard water build up by a chemical reaction that dissolves the compounds. In this case, the reaction that occurs is: → 2H2O() + Mg(OH)2(s) + 2 CH3 CH(OH)COOH(aq) Mg(CH3 CH(OH)COO)2(aq) Depending on the mixture, CLR contains 12-18% by mass of lactic acid (1.4-2.0 M), and is commonly sold in 28...