How would you prepare a saturated solution of sodium chloride in water at $25^\circ C?$ What will happen if this solution is cooled to $10^\circ C?$
Download our app for free and get started
Take some water in a beaker and heat it slowly with the help of burner. Now, start adding sodium chloride salt to the hot water with a spoon and stir it with a glass rod continuously so that sodium chloride goes on dissolving in water. Take the temperature of water up to $25^\circ C$ and then keeping this temperature constant, go on adding sodium chloride till no more sodium chloride dissolves in it and some undissolved crystals will be left at the bottom. The contents of the beaker are now filtered and the clear solution obtained is the saturated solution of sodium chloride at $25^\circ C.$ If the temperature is lowered from $25^\circ C$ to $10^\circ C,$ then some of the crystals of sodium chloride will separate out from the solution in the form of solute crystals.
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1View SolutionHow will you separate a mixture of kerosene oil and water? Explain with the help of a labeled diagram
- 2View SolutionDiscuss the method of separating a mixture containing chalk powder, iron fillings and naphthalene.
- 3View SolutionDescribe the method of separating a mixture containing common salt, sand and ammonium chloride.
- 4View SolutionDefine the following:
- Sol
- Aerosol
- Emulsion
- Foam
- 5Iron powder and sulphur powder were mixed together and divided into two parts $A$ and $B.$ When part $A$ was heated strongly over a burner, then a substance $C$ was formed. The part $B$ was, however, not heated at all. When dilute hydrochloric acid was added to substance $C,$ then gas $D$ was evolved and when dilute hydrochloric acid was added to part $B$ then gas $E$ was evolved.View Solution
- What type of substance is $B?$
- What type of substance is $C?$
- Name the gas $(i)\ D,$ and $(ii)\ E?$
- Write one characteristic property of gas $D.$
- 6View SolutionDraw a labelled diagram of the fractional distillation apparatus used for separating a mixture of alcohol and water.
- 7View SolutionA mixture contains water, kerosene and sand. How will you separate this mixture?
- 8View SolutionDescribe the various steps involved in the separation of iodine, iron filings and salt from a mixture.
- 9View SolutionDifferentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not?
- 10View SolutionState the main points of difference between homogeneous and heterogeneous mixtures.