Transcription of Boiling points of mixtures - South Wolds Academy
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Boiling points of mixtures - South Wolds Academy
8Ge(7) Boiling points of mixtures The table on the right shows the Boiling points of water, % of % of Boiling ethanol (alcohol) and mixtures of the two liquids. ethanol water point ( C). Use the data in the table to answer the following 100 0 78. questions. 90 10 79. 80 20 82. 70 30 85. 60 40 90. 50 50 92. 40 60 94. 1 What is the Boiling point of pure ethanol? 8. 2 What is the Boiling point of pure water? 30 70 96. G. 3 What is the mean (average) of these two temperatures? 20 80 98. e 10 90 99. 4 What is the Boiling point of the mixture that contains 0 100 100. half ethanol and half water? 5 Would you have expected the answers to questions 3. and 4 to be the same? Explain why. 6 Plot a graph of Boiling point (y-axis) against percentage of water in the mixture (x-axis).
Exploring Science edition 355 © Pearson Education Limited 2008 8Ge(7) Boiling points of mixtures The table on the right shows the boiling points of water, ethanol (alcohol) and mixtures of the two liquids.
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