A distillery makes ethanol by fermenting glucose with yeast.
C6H12O6(aq)→2C2H5OH(aq)+2CO2(g) \mathrm{C_{6}H_{12}O_{6}(aq) \rightarrow 2C_{2}H_{5}OH(aq) + 2CO_{2}(g)} C6H12O6(aq)→2C2H5OH(aq)+2CO2(g)| Element | Relative atomic mass |
|---|---|
| H | 1 |
| C | 12 |
| O | 16 |
Ethanol is the desired product. Calculate the atom economy of this process.
In one batch, 230 kg of ethanol is formed. Use your answer to part (a) to calculate the mass of carbon dioxide formed in the same batch.
151 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.