Solution of Na2SO4 will be_________________?
Correct answer: C. neutral
- A. basic
- B. acidic
- C. neutral
- D. cannot be presicted without data
Explanation
At the usual introductory level, Na2SO4 is considered to come from a strong acid and a strong base, so its solution is treated as neutral. Students may choose basic because sulfate is a negative ion, but the small hydrolysis of sulfate is normally neglected in this question. Strictly, sulfate hydrolysis can make the solution very slightly basic.
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About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
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