Name _____________________________________
Subject __________________, Period ____ Teacher __________________
Texas High School
Date ____________
Lab Worksheet – Polar Water
Observations:
Substance
Sodium chloride
Table 1: Compound Solubility in Water
Formula
Physical State
Solubility in Water
Glycerin
Sucrose
Sodium thiosulfate
Calcium carbonate
Hexane
Potassium sulfate
Ethanol
Kerosene*
Analyses and Conclusions:
1. Polar and ionic substances generally dissolve in water; nonpolar substances do not. Explain.
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2. Based on the fact that calcium carbonate is an ionic compound, you may be puzzled by your
experimental results for this compound. Propose an explanation for the solubility of calcium
carbonate.
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3. What basis can you use to decide whether the liquids tested are polar or nonpolar? Which of the
liquid substances tested are polar? Which are nonpolar?
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