Ethanol can be produced by the fermentation of glucose.
The balanced equation for the reaction is:
C6H12O6→2C2H5OH+2CO2 \text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 2\text{C}_2\text{H}_5\text{OH} + 2\text{CO}_2 C6H12O6→2C2H5OH+2CO2Calculate the atom economy for the production of ethanol in this reaction.
Relative atomic masses (ArA_rAr): H=1\text{H} = 1H=1, C=12\text{C} = 12C=12, O=16\text{O} = 16O=16
Relative formula masses (MrM_rMr): C6H12O6=180\text{C}_6\text{H}_{12}\text{O}_6 = 180C6H12O6=180, C2H5OH=46\text{C}_2\text{H}_5\text{OH} = 46C2H5OH=46
Give your answer to two significant figures.
119 exam-style questions on Edexcel GCSE Chemistry 6.2 Quantitative analysis, covering 6.2.1 Concentration in mol dm⁻³ and titration calculations, 6.2.2 Percentage yield and why actual yield falls short, 6.2.3 Atom economy of a reaction, 6.2.4 Choosing a reaction pathway, and 6.2.5 Molar volume of gases and Avogadro's law. Each one has a worked solution and a mark scheme showing where the marks go.