Which one of the following compounds is least soluble in water at room temperature?
A - VCE - SSCE Chemistry - Question 1 - 2011 - Paper 1
Question 1
Which one of the following compounds is least soluble in water at room temperature?
A. ethane
B. ethanol
C. ethylamine
D. ethanoic acid
Worked Solution & Example Answer:Which one of the following compounds is least soluble in water at room temperature?
A - VCE - SSCE Chemistry - Question 1 - 2011 - Paper 1
Step 1
Identify the compounds
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Answer
The compounds listed in the question are ethane, ethanol, ethylamine, and ethanoic acid. Each compound has different properties affecting its solubility in water.
Step 2
Evaluate each compound's solubility
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Answer
Ethane (C2H6): A nonpolar hydrocarbon, ethane is not soluble in water due to its nonpolar nature.
Ethanol (C2H5OH): A polar compound because of the hydroxyl (-OH) group, ethanol is highly soluble in water.
Ethylamine (C2H5NH2): This molecule contains an amine group, which makes it polar, allowing it to dissolve well in water.
Ethanoic Acid (C2H4O2): As a carboxylic acid, ethanoic acid is also polar and soluble in water.
Step 3
Determine the least soluble compound
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Answer
Given the evaluations, ethane is the least soluble in water at room temperature due to its nonpolar characteristics compared to the other compounds.
Step 4
Final Answer
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