A food company makes a solid spread by bubbling hydrogen through a liquid vegetable oil. This removes some of the C=C double bonds from the fatty acids.
Explain why removing C=C double bonds makes the oil more solid.
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Describe how the company could confirm that the finished spread contains lipid.
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The spread provides 3000 kJ of energy per 100 g. Lipid releases 38 kJ g⁻¹. Assuming all the energy comes from lipid, calculate the mass of lipid in 100 g of the spread. Give your answer to 3 significant figures.
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