Multiple Choice
Which of the following substances is an example of a compound with low solubility in water?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following compounds is most commonly used as a solvent in laboratory settings?
A
CaCO3 (calcium carbonate)
B
H2O (water)
C
NaCl (sodium chloride)
D
AgCl (silver chloride)
Verified step by step guidance1
Step 1: Understand what a solvent is — a solvent is a substance that dissolves a solute, resulting in a solution. In laboratory settings, solvents are typically liquids that can dissolve a wide range of substances.
Step 2: Analyze each compound's physical state and properties. CaCO3 (calcium carbonate), NaCl (sodium chloride), and AgCl (silver chloride) are all solid ionic compounds at room temperature and are not liquids, so they are not commonly used as solvents.
Step 3: Consider H2O (water), which is a liquid at room temperature and is known as the 'universal solvent' because it can dissolve many substances due to its polar nature.
Step 4: Recognize that water's polarity and ability to form hydrogen bonds make it highly effective at dissolving ionic and polar compounds, which is why it is the most commonly used solvent in laboratories.
Step 5: Conclude that among the given options, H2O (water) is the most suitable and commonly used solvent in laboratory settings.
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