Gce Model Questions Vol1 2019 Chemistry Question 35
Practice objective / multiple choice question 35 from the 2019 Gce Model Questions Vol1 Chemistry examination.
A chemist carries out the following sequence starting from 10.0 g of benzoic acid (M = 122.12 g mol⁻¹):\n1) Conversion to the acid chloride with excess thionyl chloride (quantitative).\n2) Esterification of the acid chloride with excess ethanol, isolated yield 85 %.\n3) Basic hydrolysis of the ester followed by neutralisation with NaOH, isolated yield 90 %.\nThe final isolated product is sodium benzoate, and 9.00 g are obtained. Calculate the overall percentage yield of the whole process relative to the theoretical maximum amount of sodium benzoate that could be obtained from the starting benzoic acid. Give your answer to two significant figures.
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About This Question
This is Gce Model Questions Vol1 2019 Chemistry Question 35. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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