The pH of a 0.20-M solution of oxalic acid (H2C2O4) is measured to be 1.10. Use this information to determine a value of Ka for oxalic acid. H2C2O4(aq) + H2O(l) HC2O4-(aq) + H3O+(aq) Ka =
The pH of a 0.20-M solution of oxalic acid (H2C2O4) is measured to be 1.10. Use...
Determine the concentration of H3O+ in a 0.064 M solution of oxalic acid, H2C2O4.H2C2O4(aq)+H2O(l) ⇌ H3O+(aq)+HC2O−4(aq) Ka1=0.054HC2O−4(aq)+H2O(l) ⇌ H3O+(aq)+C2O2−4(aq) Ka2=5.4×10−5
Calculate the pH and the equilibrium concentrations of HC2O4- and C2O42- in a 0.0782 M oxalic acid solution, H2C2O4 (aq). For H2C2O4, Ka1 = 5.9×10-2 and Ka2 = 6.4×10-5 pH =_______ [HC2O4-] =___________ M [C2O42-] =___________ M
Calculate the pH and the equilibrium concentrations of HC2O4- and C2O42- in a 0.1160 M oxalic acid solution, H2C2O4 (aq). For H2C2O4, Ka1 = 5.9×10-2 and Ka2 = 6.4×10-5 pH = [HC2O4-] = M [C2O42-] = M
calculate the pH and pOH for a 0.15 M oxalic acid H2C2O4 solution. (ka1-6.0x10^-2, Ka2-6.1x10^-5)
one practical application of oxalic acid (H2C2O4) is as a rust remover. Rust is primarily composed of Fe2O3, which reacts with oxalic acid according to the unbalanced equation shown below. Fe2O3 (s) + H2C2O3 (aq) --> Fe(C22O4)3-3 (aq) + H2O (l) + H+ (aq) Calculate the number of milligrams of Fe2O3 that can be removed using 500.0 mL of 0.1068 M H2C2O4.
Oxalic acid (HOOC-COOH) is a simple diprotic acid. It is used commercially in bleaching straw and leather and removing rust and ink stains. a. Write each dissociation step for the acid including the K values from appendix C. b. What are the equilibrium concentrations of [H2C2O4], [HC2O4- ], and [C2O42- ] in a 0.150M H2C2O4 solution. (Hint: the concentrations of [H2C2O4], [HC2O4- ] are found together and used to find concentration of [C2O42- ].) c. What is the pH of...
The pH of a 0.23 M solution of acid HA is found to be 3.87. What is the Ka of the acid? The equation described by the Ka value is HA(aq) + H2O(l) <=> A-(aq) + H3O+ (aq) • Report your answer with two significant figures. Provide your answer below: K=0
1. Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.400 M H3PO4. Calculate the pH of this solution. 2. Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.400 M H2C2O4.
Calculate ka or kb from experimental data. The pH of a 8.7x10-2-M solution of maleic acid (H,C H204) is measured to be 1.52. Use this information to determine a value of K, for maleic acid. H2C4H204(aq) + H2O(1) P HC4H204 (aq) +H30*(aq) Ka=
What is the pH of a 0.44 M solution of a weak acid HA, with a Ka of 3.19×10−12? The equilibrium expression is: HA(aq)+H2O(l)⇌H3O+(aq)+A−(aq)