it turned pink at 26 ml. What is molar mass? California State Universi X O ming-
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it turned pink at 26 ml. What is molar mass?
California State Universi X O ming-Com view.php?id 35068000 6/13/2017 11:00 PM Due Date: Map Sapling Learning Points Possible: 10 Grade Category: Graded Reset mL The flask shown here contains 0.361 g of acid and a few drops Descripti On of phenolphthalein indicator dissolved in water. The buret contains Policies: CHEM215 01 10 25 What volume of base is needed to You can check your answers. reach the end point of the titration? You can view solutions when you complete or Number 30 up on any question. mL base You can keep trying to answer each question u you get it right or give up Assuming the acid is monoprotic, what is its molar mass? You lose 5% of the points available to each an Add base to the solution until in your question for each incorrect attempt at Number it just turns pink. You may need to reset the titration if answer you go past the end point. g mo O eTextbook Help with This Topic OWeb Help & Videos oTechnical Support and Bug Reports Next Exit Previous Give Up & View Solution Check Answe 2011-2017 Sapling Learning, Inc. about us Careers privacy policy terms of use contact us help 705 PM M I'm Cortana. Ask me anything 613/2017Explanation / Answer
The number of mols of NaOH consumed = (0.110 M)(26 mL/1000) L = 0.00286 mol
The same number of mols of acid at equilibrium = 0.00286 mol
Therefore, molar mass of the monoprotic acid = mass / number of mols = 0.361 g / 0.00286 mol = 126.2 g/mol
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