Chemistry
State the methods by which hydrated salts can be made anhydrous?
Water
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Answer
Hydrated salts can be made anhydrous by:
- direct heating
- heating in dry or hot air
- heating under vacuum
- by using dehydrating/desiccating agents such as warm concentrated sulphuric acid.
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Related Questions
What are drying or desiccating agents. Give examples.
In which of the following substances will there be :
(a) increase in mass
(b) decrease in mass
(c) no change in mass when they are exposed to air?
- Sodium chloride
- Iron
- Conc. sulphuric acid
- Table salt
- Sodium carbonate crystals
Sodium sulphate is soluble in:
- Ether
- Water
- Alcohol
- Benzene
Water acts as a universal solvent because:
- It is an organic compound
- It is polar and has a high dielectric constant.
- It is liquid at room temperature.
- It boils at 100°C