Making ethanol by the hydration of ethene
3 marks · Easy| Substance | Mass used (g) |
|---|---|
| Ethene | 56 |
| Steam | 18 |
| Ethanol | 74 |
Based on the table, write the word equation for the hydration of ethene.
Write the balanced symbol equation for this reaction.
State the mass of ethanol produced when 56 g of ethene reacts completely.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) Ethene + steam → ethanol
(b) \ce{CH2=CH2 + H2O -> CH3CH2OH}
(c) 74 g
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Correct word equation matching data: Ethene + steam → ethanol
B1 (b) · 1 mark · Correct balanced symbol equation: \ce{CH2=CH2 + H2O -> CH3CH2OH}
B1 (c) · 1 mark · Correctly states the mass of ethanol produced when 56 g of ethene reacts completely is 74 g.
Worked solution
a) The word equation is: Ethene + steam → ethanol
b) The balanced symbol equation is:
c) According to the table, 56 g ethene yields 74 g of ethanol when all of the ethene reacts.