7) Calculate the K, of butanoic acid (monoprotic) if a 0.025 M aqueous solution has a...
7) Calculate the K of butinoic acid (margrotis)ifa 0.025 M aqueous solution has a pH of 3.21 a 25°C. 8) trans-cinnamic acid (C.H.Oz; monoprotic) has a K = 3.60 x 10-5 a. Calculate the pH of a 0.020 M aqueous solution of this acid. ON -OSI b. Calculate the percentage of acid dissociated (ie, in the "A" form) in this solution using your calculations in (a). 0.8 Ho CHEM 120B-Activity #3 Acids and Bases Page 5 of 12
2) You dissolve 15.0 grams of propanoic acid (monoprotic, MW = 74.08 g/mol, Ka = 13x 10-5) in 95.00 ml of water. Calculate the pol of this solution CHEM 120B-Activity #3 Acids and Bases
A 0.25 M aqueous solution of a weak monoprotic acid has a pH of 3.37. Calculate the Ka of this weak acid.
Calculate the [H+) and pH of a 3.75 x 10-4 M butanoic acid solution. The K, of butanoic acid is 1.52 x 10-5. M pH =
The pH of a 1.4 M solution of butanoic acid (HC,H,O2) is measured to be 2.34. Calculate the acid dissociation constant K, of butanoic acid. Round your answer to 2 significant digits. K -0 2 Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select I next to the species that makes the solution with the lowest pH. Select 2 next to the...
please help. 1. (3 polnts) A 0.0730 M solution of a monoprotic acid is 1.07 % ionized. What is the pH of the solution? a. b. Calculate the K, of the acid. 2. (2 points) The pH of a 0.025 M solution of a monoprotic acid is 3.21. What is the Ka value for the acid? 3. (2 points) Determine the percent ionization of a 0.0028 M HA solution. (K, of HA 1.4 x 10") 4. (4 points) Lysine is...
1. The pH of a .02 M solution of monoprotic acid is 6.20. Find the K_a of the acid 2. If .08 moles of a monoprotic acid are dissolved in 2 L of aqueous solution, it is then found that 14% of the acid has dissociated at equilibrium. Calculate the K_a for this monoprotic acid. 3. Consider the reaction: N2O4 (g)⇌ 2 NO2(g) taking place in a sealed, fixed volume container. Suppose initially [N2O4 (g)] 0 = 0 and [NO2(g)]...
Question 6 (2 points) Calculate the pH of 0.0080 M butanoic acid, which is a monoprotic acid; Ka=1.52 x 10-5. Assume that the 5% approximation rule applies. Provide your answer to two places after the decimal. Your Answer: Answer
(3 points) A 0.0730 M solution of a monoprotic acid is 1.07% ionized. What is the pH of the solution? Calculate the Ka of the acid. (2 points) The pH of a 0.025 M solution of a monoprotic acid is 3.21. What is the Ka value for the acid? (2 points) Determine the percent ionization of a 0.0028 M HA solution. (Ka of HA = 1.4 x 10-9) (4 points) Lysine is triprotic amino acid (separately loses three H’s in...
A 0.174-M aqueous solution of a weak acid has a pH of 2.24. Calculate K, for the acid.