Organic chemistry 2009 VCE | |
Cinnamic acid is an organic substance that partly contributes to the flavour of oil of cinnamon. A structure of |
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A product derived from palm tree oil is used as an alternative fuel in diesel engines. Solution |
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A liquid mixture of 50% ethanol and 50% water was distilled in the apparatus shown above. The boiling point of ethanol is 78°C and that of water is 100°C.
Solution
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Myrcene is a naturally occurring compound found in the leaves of bay trees. It is known to be a polyunsaturated hydrocarbon. It can react with hydrogen to produce a saturated hydrocarbon. In a laboratory investigation, a 1.00 g sample of pure myrcene fully reacted with exactly 510 mL of hydrogen gas measured at 20.0°C and 105.0 kPa. In this reaction, myrcene was converted to a saturated alkane with a molecular formula C10H22. |
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a. What type of reaction has occurred between the myrcene and hydrogen? Solution |
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b. Calculate the amount, in moles, of hydrogen reacting. Solution |
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c. Calculate the mass of C10H22. produced in the reaction. Solution |
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d. Determine the number of double bonds in each molecule of myrcene. Solution |
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Many esters are used as flavouring agents in food. The structure of the ester used in raspberry flavouring is provided below. Solution |
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Glucose can combine with fructose to form the disaccharide, sucrose. Solution |
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