Calculate the pH of a solution that is 0.215M benzoic acid and 0.150M sodium benzoate, a salt whose anion is the conjugate base of benzoic acid.
Calculate the pH of a solution that is 0.215M benzoic acid and 0.150M sodium benzoate
Calculate the pH of a solution that is 0.105M benzoic acid and 0.190M sodium benzoate, a salt whose anion is the conjugate base of benzoic acid.
Calculate the pH of a solution that is 0.155M benzoic acid and 0.210M sodium benzoate, a salt whose anion is the conjugate base of benzoic acid.
Calculate the pH of a solution that is 0.195M benzoic acid and 0.200M sodium benzoate, a salt whose anion is the conjugate base of benzoic acid.
Calculate the pH of a solution that is 0.145Mbenzoic acid and 0.220M sodium benzoate, a salt whose anion is the conjugate base of benzoic acid.Express the pH to at least two decimal places.
a buffer solution is 0.050 in benzoic acid and 0.150 M sodium benzoate. For benzoic acid Ka =6.5E-5. a.) the acid and base components of the buffers are_____and_______, respectively. b.) based on the information provided on the previous question, the pH of the buffer solution is given by:
Sodium benzoate (NaC7H5O2) is sometimes used as a preservative in foods. Benzoic acid is the conjugate acid of the benzoate ion, which has a Ka value of 6.3 x 10-5. Calculate the Kb value for the benzoate ion. (1 mark) Use the Kb value for the benzoate ion from part a, calculate the pH of a 0.215 M solution of the sodium benzoate. (Ignore x method, 4 marks)
What is the pH of a buffer solution made by mixing 0.1 M benzoic acid and 0.15 M of its conjugate base, sodium benzoate. Ka = 6.5x10-5 for benzoic acid.
Calculate the pH at 25°C of a 0.54M solution of sodium benzoate NaC6H5CO2. Note that benzoic acid HC6H5CO2 is a weak acid with a pKa of 4.20.Round your answer to 1 decimal place.
You add 2 mL of 3M HCl to the above benzoate solution and tested the pH was 3.1. Given that the pka of benzoic acid is 4.1, what are the ratios of sodium benzoate to benzoic acid in the reaction? You made a solution of sodium benzoate by dissolving 1.9 grams of sodium benzoate in 20 mL of distilled water. Calculate its molarity. (MW of sodium benzoate is 144 g)
* 2. Calculate the pH of a buffer solution that is 0.050 M in benzoic acid (HC,H,O,) and 0.150 M in sodium benzoate (NaC,H,O,). For benzoic acid, K = 6.5 X10. Use the Henderson-Hasselbalch approach. (6 points) Equation: HC,H,02(aq) + H20(1) = H,0*(aq) + C,H,O, (aq) Hint: pH = pKa + log base] (acid]