Alkenes
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When 20 g of ethene was reacted with excess sulphuric acid, the yield of the reaction was 87%. What was the product and how much (in g) was formed?
I really would like some help in how to work this out.
Corrie writes .....
Sulphuric acid adds across the >C=C< bond in ethene, to form ethyl hydrogensulphate, CH3-CH2OSO3H.
1. Work out how many moles 20 g of ethene is.
2. An 87% yield will give you 0.87 x this no. moles of product.
3. Work out the molar mass of ethyl hydrogensulphate.
4. Multiply this by the no. of moles of it formed, to obtain the mass of product in g.
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updated: 23 October 2007
