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Question 19 What is the normality of a 0.900 M solution oxalic acid, H2C204? 0.450 N...
Oxalic acid, H2C204, is used in the restoration of old wood. What is the molarity of oxalic acid if 29.78 mL of 0.538 M NaOH is required to titrate a 14.75 mL of an oxalic acid solution given the following reaction? (3 decimal places, fill in the number ONLY!) H2C2O4 (aq) + 2 NaOH (aq) → Na2C204 (aq) + 2 H20 (1)
You titrated a 22.00 mL solution of 0.0300 M oxalic acid with
freshly prepared solution of KMnO4. If it took 48.99 mL of this
solution, what is the molarity of the KMnO4?
0.022 L of 0.300 M oxalic acid
(0.022)(0.03) = 0.00066 mol oxalic acid
0.0006 mol oxalic acid x (2 mol KMnO4)/(5 mol oxalic acid)=
0.000264 mol KMnO4
0.000264 mol/0.04899 L = 0.05388855 M KMnO4
= 0.005388 M KMnO4
where did I go wrong?
Question 7 0.1 / 1...
What is the hydronium-ion concentration of a 0.140 M oxalic acid, H.C_0.. solution? For oxalic acid, Ka = 5.6 10 and Kay = 5.1 x 10 O 8.4 10 M 3.2 x 10-2M 0 65 % 102 M O 1.1 102 M
What is the hydroxide-ion concentration of a 0.190 M sodium oxalate (Na2C2O4) solution? For oxalic acid (H2C204), Kal = 5.6 x 10-2 and K42-5.1 x 10-5. 6.1 x 10-6M o 1.0 x 10-7 M 7.9 x 10-2 M O 3.1 x 10-3 M O 1.8 x 10-7M
The reaction of MnO4 with oxalic acid (H2C204) in acidic solution, yielding Mn2+ and CO2 gas, is widely used to determine the concentration of permanganate solutions. a. Write a balanced equation for the reaction. b. Show that the reaction goes to completion by calculating the values of AGº and K at 25 °C. Most values for AG°f are in the back of your textbook. AG°f of H2C2O4(aq) is -674.0 kJ/mol. If your calculator will not give you an actual value...
Please answer these question:
--- Calculate the Ka2 for oxalic acid (found in rhubarb and spinach) (H2C204) if a 0.35 M solution of Na2C204 has a pH of 8.87. -- Calculate the molarity of a solution of nicotine, a weak base, if the solution has a pH = 10.72. Kb = 7.4 x 10-7
please can you help me
Consider the following two reactions involving oxalic acid. 2Mn04- + 5H2C204 + 6H+ + 2Mn2+ + 10002 + 8H20 H2C2O4 + 204- → C2042- + 2H20 What volume of 0.0100 M KMnO4 solution will titrate a solution prepared from 37.0 mg of H2C204? 2.67 mg Submit Answer Incompatible units. No conversion found between "mg" and the required units. Tries 0/5 Previous Tries What volume of 0.0100 M NaOH solution will titrate a solution prepared from...
If 7.74 mL a 0.154 M solution of oxalic acid is mixed with 7.15 mL of water 6.12 mL of potassium permanganate, what is the new molarity of the oxalic acid--before a reaction takes place?
If 2.34 mL a 0.219 M solution of oxalic acid is mixed with 11.11 mL of water 11.88 mL of potassium permanganate, what is the new molarity of the oxalic acid--before a reaction takes place?
You titrated a 25.00 mL solution of 0.02 M oxalic acid with a freshly prepared solution of KMnO4. If it took 41.81 mL of this solution to reach the endpoint, what was the molarity of the KMnO4? 0.0119 is wrong +/- 3 sig figs.