1. Complete the following acid-base reaction and then balance it. NaOH + H2C204 2. Oxalic acid...
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)
3) Oxalic acid (H2C204) is present in many plants. Balance the following equation in acidic solution MnO4 C2042 Mn2 +CO2 0200 Z-
The empirical formula of the product is (1 pt) Consider the following reaction between oxalic acid and potassium hydroxide. 2. H20 + K2C204 H2C204 + KOH A 1.500 g sample of oxalic acid is dissolved in water and titrated with 32.67 mL of KOH to a phenolphthalein end point. What is the molar concentration of the KOH solution? (5 pts)
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...
wote TITRATION OF AN ACID WITH A BASE 2020 Pre-lab assignment ame In part A of the procedure, you will make a 0.2 M NaOH solution by diluting 6 M NaOH. How many milliliters of 6 M NaOH are required to make 500.0 mL of 0.2 M NaOH? Even though it will be breaking significant figure rules, give the answer to the nearest tenth. In part B of the procedure you will be dissolving oxalic acid dihydrate in water to...
- What is a primary standard? You have weighed out precisely 2.471 g of oxalic acid dihydrate, and diluted it to 250,0 mL. What is its molarity? (Hint: Example 12.1) What is a secondary standard? You have diluted 9 mL of roughly 6 M NaOH to 500 mL. What is the approximate molarity of the base? (Pay attention to significant figures) (Hint: Example 12.2) What is the name of the indicator you are to use and what color does it...
Write balanced complete ionic equation for the following acid-base reaction: HCHO2(aq) + NaOH(aq) -----> Express as complete ionic equation and identify all phases in answer
a) Write the reaction for the neutralization oxalic acid (H2C2O4) with sodium hydroxide (NaOH). Note oxalic acid is diprotic (like sulfuric acid). b) A 0.1187 g sample of an unknown, diprotic solid acid is dissolved in water. 26.36 mL of 0.1000 M sodium hydroxide is used to reach the equivalence point. How many moles of sodium hydroxide were reacted? How many moles of acid reacted? What is the molecular weight of the acid?
Data Table 1 Mass of flask and oxalic acid (g) 117.43 Mass of empty flask (g) 116.93 Mass of oxalic acid (g) 0.5 Moles of oxalic acid (mol) Final volume of NaOH (mL) 17 Initial volume of NaOH (mL) 5 Volume of NaOH used (mL) 12 Moles of NaOH (mol) Molarity of NaOH (M) Data Table 2 Mass of flask and vinegar (g) 126.61 Mass of empty flask (g) 121.63 Mass of vinegar (g) 4.98 Final volume of NaOH (mL)...
A 0.900 g sample of phthalic acid re- quired 40.0 mL of NaOH solution for complete titration. What weight ofben- zoic acid would require 25.0 mL of the same NaOH solution for the titration? In the formula for benzoic acid shown to the right, the acidic hydrogen is circled . Complete and balance the following acid-base reactions: