The rule to determine water solubility states that: Aromatic compounds are water

Question

The rule to determine water solubility states that: Aromatic compounds are water soluble. Compounds with a polar functional group and 5 carbons or less are water soluble. Compounds with one polar functional group are water soluble. Compounds with more than 5 carbons are water soluble. Tries 0/1 Compounds that are water soluble need to be tested for hexane solubility. false true Tries 0/1 In the sodium hydroxide test all water insoluble acids will dissolve. The sodium bicarbonate test can then distinguish between weak and strong acids. What is the approximate pKa limit before a compound will not dissolve in sodium bicarbonate 6.4 5.5 15 0 Tries 0/1

Explanation / Answer

Question 1: The answer is (b) Compounds with a polar functional group and 5 carbons or less are water soluble.

Since water is a polar compound, other polar compounds will be soluble in water while their molecules are small (5 carbons or less).

Question 2: True. As mentioned above, there are some polar organic compounds that are soluble in water because they have small molecules.

Question 3: The aproximate pKa in which a compound will not dissolve in sodium bicarbonate is 6.4

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