0.1905 grams of an unknown organic acid containing 2 carboxylic groups was dissolved in about 50 mL of water in a 250 mL Erlenmeyer flask and titrated against 0.1000 M NaOH solution using bromothymol blue indicator. 38.46 mL of titrant was used to achieve end point. Calculate the molar mass of the unknown. Write answer with two decimal places only. No units please.

0.1905 grams of an unknown organic acid containing 2 carboxylic groups was dissolved in about 50 mL of water in a 250 mL Erlenmeyer flask and titrated against 0.1000 M NaOH solution using bromothymol blue indicator. 38.46 mL of titrant was used to achieve end point. Calculate the molar mass of the unknown. Write answer with two decimal places only. No units please.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter12: Chirality

Section: Chapter Questions

Problem 10CTQ

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If, during the experiment, the following data were obtained, determine the content of acetylsalicylic acid in the tablets. The molar mass of aspirin is 180.158 mg/mmol. Total mass of the two aspirin tablets (g) = 0.2500 Molarity of NaOH (mmol/mL) = 0.1204 Volume of NaOH used (ml) = 50.00 Molarity of HCI (mmol/mL) = 0.09088 Volume of HCl used to titrate (ml) = 9.35 Manufacturer's indicated acetylsalicylic acid content per tablet (mg) 80.0 Find the following: mmol of NaOH initially added: mmol of NaOH back-titrated: mmol of NaOH that reacted: mg of acetylsalicylic acid in the analyzed sample: mass percent of acetylsalicylic acid in the sample: mg of acetylsalicylic acid per tablet: percent error (based on indicated content):_
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Hello, I'm having issue with this question: "Set up the factor label (dimensional analysis) calculation required to determine the concentration of the NaOH solution via titration of a given amount of KHP. Include all numbers except the given mass of KHP. Use “Mass of KHP” in place of your given mass" I started by converting the mass of KHP to moles, but I'm going wrong somewhere and not getting a correct answer because I think I'm missing numbers somewhere, but I'm not entirely sure. A picture of the titration I'm working from is also attached.
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