pH = 3.92
pKa = -log Ka = -log 1.76 x 10-5 = 4.75
3.92 = 4.75 + log A-/HA
log A-/HA = -0.8344
A-/HA = 0.1463
The ratio of acetate ion to acetic acid is 0.1463
What is the ratio of acetate ion to acetic acid (K_a = 1.76 times 10^-5) in...
What is the ratio of acetate ion to acetic acid (K_a = 1.76 times 10^-5) in a buffer containing these compounds at pH 3.470?
What is the ratio of acetate ion to acetic add (K_ a = 1.76 times 10^-5) in a buffer containing these compounds at pH 3.570?
What is the ratio of acetate ion to acetic acid (Ka = 1.76 x 10-5) in a buffer containing these compounds at pH 4.07
What is the ratio of acetate ion to acetic acid (Ka = 1.76×10–5) in a solution containing these compounds at pH 3.17? Write your answer as a decimal and not as a fraction.
What is the ratio of acetate ion to acetic acid (Ka = 1.76×10–5) in a solution containing these compounds at pH 4.25 ? Write your answer as a decimal and not as a fraction.
What is the ratio of the concentrations of acetate ion and undissociated acetic acid at pH 4.10? (The pKa of acetic acid is 4.76.)
Acetic acid has a Ka of 1.8*10^-5. Three acetic acid/ acetate buffer solutions, A,B, and C, wer made using varying concentrations: 1. [acetic acid] ten times greater than [acetate] 2. [acetate] ten times greater than [acetic acid] 3. [acetate] = [acetic acid] Match each buffer to the expected pH pH = 3.74 pH= 4.74 pH = 5.74
Bonus) What concentration of acetate ion in 0.500 M acetic acid produces a buffer solution with pH = 5.00? K, for acetic acid = 1.80x10-5
A) A buffer containing acetic acid and sodium acetate has a pH of 5.45. The Ka value for CH3CO2H is 1.80 × 10-5. What is the ratio of the concentration of CH3CO2H to CH3CO2-? [CH3CO2H]/[ CH3CO2-] = _________ B) What is the pH change when 29.6 mL of 0.117 M NaOH is added to 95.4 mL of a buffer solution consisting of 0.123 M NH3 and 0.179 M NH4Cl (Ka for ammonium ion is 5.6x10^-10.) pH change =_______
Why? K_a for acetic acid, CH_3COOH, is 1.80 times l0^-5. K_a for acetylsalicylic acid (aspirin), HC_9H_7O_4, is 3.00 times l0^-4. K_a for formic acid, HCOOH, is 1.80 times l0-4. What is the formula for the strongest conjugate base?