wzorowane2 pktobliczenioweśrednie (szac.)
A chemist treated 22.99 g of galantamine with sulfuric acid to make the sulfate salt: The mass of salt isolated was 24.65 g. Determine the percentage yield of the salt. Use section 7 of the data booklet.
Percentage yield calculations
Calculate percentage yield as experimental yield divided by theoretical yield, and solve combined problems involving reacting quantities, limiting reactants and the mass of product actually obtained.
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wzorowane3 pktobliczenioweśrednie (szac.)
(i) If the reaction has a percentage yield of 80 %, calculate the mass, in g, of benzene that would be produced from 2.0 kg of cyclohexane. (ii) Calculate the atom economy for this reaction, as a percentage.