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Organic synthesis (A-level only)

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Question 1

A 4.50 g4.50\text{ g}4.50 g sample of benzoic acid (Mr=122.0M_r = 122.0Mr​=122.0) is reacted with 6.00 cm36.00\text{ cm}^36.00 cm3 of methanol (Mr=32.0M_r = 32.0Mr​=32.0) to produce methyl benzoate (Mr=136.0M_r = 136.0Mr​=136.0) according to a 1:1 stoichiometric ratio.

In this preparation, the percentage yield of methyl benzoate is 68.0%68.0\%68.0%. The density of methanol is 0.79 g cm−30.79\text{ g cm}^{-3}0.79 g cm−3.

Show by calculation which reagent is in excess and calculate the mass, in g\text{g}g, of methyl benzoate produced.

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Organic synthesis (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Organic synthesis (A-level only)