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A 0.485 g sample of a monoprotic acid is dissolved in water and titrated with 0.270 M KOH. What is the molar mass of the acid if 13.0 mL of the KOH solution is required to neutralize the sample? molar mass: g/mol

A 0.485 g sample of a monoprotic acid is dissolved in water and titrated with 0.270 M KOH. What is the molar mass of the acid if 13.0 mL of the KOH solution is required to neutralize the sample? molar mass: g/mol

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**Problem Statement:** A 0.485 g sample of a monoprotic acid is dissolved in water and titrated with 0.270 M KOH. What is the molar mass of the acid if 13.0 mL of the KOH solution is required to neutralize the sample? **Calculation Section:** Molar mass: [______] g/mol **Explanation:** In this problem, you are given a 0.485 g sample of a monoprotic (one H+ ion) acid. You need to determine the molar mass of the acid based on titration data with a potassium hydroxide (KOH) solution. The KOH solution has a concentration of 0.270 M, and 13.0 mL of it is required to neutralize the acid sample. - Use stoichiometry and the concept of molarity to find the moles of KOH used. - Determine the moles of acid, knowing that it's monoprotic and fully reacts with KOH. - Calculate the molar mass using the mass of the acid sample and the moles of acid. This kind of problem is common in acid-base titration experiments to find unknown molar mass or concentration values.
Transcribed Image Text:**Problem Statement:** A 0.485 g sample of a monoprotic acid is dissolved in water and titrated with 0.270 M KOH. What is the molar mass of the acid if 13.0 mL of the KOH solution is required to neutralize the sample? **Calculation Section:** Molar mass: [______] g/mol **Explanation:** In this problem, you are given a 0.485 g sample of a monoprotic (one H+ ion) acid. You need to determine the molar mass of the acid based on titration data with a potassium hydroxide (KOH) solution. The KOH solution has a concentration of 0.270 M, and 13.0 mL of it is required to neutralize the acid sample. - Use stoichiometry and the concept of molarity to find the moles of KOH used. - Determine the moles of acid, knowing that it's monoprotic and fully reacts with KOH. - Calculate the molar mass using the mass of the acid sample and the moles of acid. This kind of problem is common in acid-base titration experiments to find unknown molar mass or concentration values.
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