Suppose the student had used 20.00 grams of the acid and dissolved the acid in distilled water to bring the volume to exactly 100.00 mL. She then added several drops of phenolphthalein to the acidic solution. She then titrated a 50.00 mL sample of this acidic solution with the sodium hydroxide solution and found that it took 42.33 mL of NaOH to reach the end point. She repeated her procedure and found that it took 42.89 mL of NaOH to reach the end point. In order to determine the molarity of the sodium hydroxide solution, she discovered that it took exactly 50.00 mL of sodium hydroxide solution to neutralize 1.500 grams of oxalic acid dihydrate.
i. Determine the molarity of the NaOH solution.
ii. Calculate the molecular weight of the unknown acid.
Recently Asked Questions
- 25. The forecast probability of recession at 22% and the other business condition is an expansion. What is the forecast probability of an expansionary period?
- What is the IRR (internal rate of return) of the following project? Year Project A 0 -$1,000 1 700 2 700 3 200 Select one: a. 29.22% b. 33.60% c. 31.76%
- 28. The market rate is 5%. The face value of the bond is $1000, the coupon rate is 3% with annual compounding, and the bond matures in 10 years. What is the