What is the pH of a 0.350 M solution of lithium citrate? (Ka Citric Acid = 7.4 x 10-4)
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When you squeeze lemon juice or lime juice on an avocado to keep it from turning brown you are using the preservative power of citric acid. Citric acid, H3C6H507, is a polyprotic acid, which is widely used a preservative as well as a flavoring agent. Kal = 7.4 x 10-4, Ka2 = 1.7 x 10-5, and Ka3 = 4.0 x 10-7 In a 0.200 M solution of NaH2C6H507 (sodium dihydrogen citrate), what is your primary citrate containing species in solution?...
1. What is the pH of a buffer solution prepared with a 0.4 M sodium citrate and 1% citric acid (pka for citric acid - 3.13, MW - 192 g/mol)? 8. A buffer solution is prepared using 0.4 mole of a weakly basic drug (pka - 10.1) and an unknown quantity of its salt. The final solution has a pH of 8.99. How much of the salt was used? 9. A buffer solution with a desired pH of 8.15 needs...
at 25 degrees celsius the Ka for formic acid is 1.8 x 10^-4. what is the pH of a 0.10 M aqueous solution of lithium formate
What is the ratio of citric acid (pK1 = 3.09) to monosodium citrate in a 1.0 M citric acid solution with a pH = 2.09
What is the pH of a 1.48M solution of citric acid? Ka1 = 7.4 x 10-4 Ka2 = 1.7 x 10-5 Ka3 = 4.0 x 10-7
1) Calculate the pH of a 0.026 M solution of NH4NO3. Kb of NH3= 1.8x10^-5. include both the dissociation and hydrolysis equations in the set up 2)calculate the pH of a 75 ml buffer solution containing 0.20 M of citric acid(C6H8O7, Ka= 3.2x10^-7) and 0.30 M sodium citrate. and what is the pH after adding 3.0 mlbof 1.5 M HCl to the buffer solution in that question? 3) what is the pH of 20.00 ml of 0.40 M nitrous acid(...
What is the pH of a buffer solution prepared with a 0.5 M sodium citrate and 1% citric acid (pKa for citric acid = 3.13, MW = 192 g/mole).
29. A student has 200 mL of a buffer solution that consists of 0.700 M of citric acid and 0.500 M sodium citrate. What is the pH of this solution? The pKal of citric acid is 3.06. 30. Give the formula and name of a metal hydroxide base.
1. What is the pOH of an aqueous solution of 0.171 M hydrobromic acid? pOH = 2. What is the pH of an aqueous solution of 1.77×10-2 M nitric acid? pH = 3. What is the pOH of an aqueous solution of 3.08×10-2 M potassium hydroxide? pOH = 4. What is the pH of an aqueous solution of 3.08×10-2 M potassium hydroxide? pH = 5. Calculate the pH of a 0.409 M aqueous solution of nitrous acid (HNO2, Ka =...
What is the answer for 11, 12, and 14? and please show how you calculate it! 11). (4 pts) What is the approximate degree of dissociation of a 0.5 M solution of butyric acid? 10g LHT Butyric acid is responsible for the odor in rancid butter and has a pKa of 4.82. 109ci.61x(0 A) 0.55 % B)4.5 % C) 5.5 % D) 99.9% E) None of these choices are correct. 12). (4 pts) has a pH of 1.9. What is...