Solutions: Solved Excercise and Think Tank

Question 2. Give short answer.

I. Differentiate between saturated and unsaturated solution.

ii. Give example of a solid solution containing two solids.

iii. Can you call a colloid a solution?

iv. Gasoline does not dissolve in water, why?

v. Are gem stones solution?

Question 3: Titanic solid substance is added to an aqueous solution of the same substance what would happen if the original situation was.

a. Supersaturated

b. Unsaturated

c. Saturated

Question for explain why ca3oh is soluble and water but C2 C8 686 is not?

Question 5 how can you prepare 250 cm cube of 0.5 m m gs4 from staff solution of 2.5 mm gs4

Sensex copy and complete the following table for aqua solution of NaOH.

Mass of solute moles of solute volume of solution molarity

20g 500cm3

0.25 0.25

200cm3 0.1

Question 7: give example of the following solutions.

a. A liquid solution of a liquid solvent and gases salute

b. A solid solution of two solids

Question 8: what is the molarity of a solution prepared by dissolving 1.25 gram of HCL gas into enough water to make 30 cm cube of solution.

Question 9 for Malang is a an aqueous solution of formaldehyde used as a preservative for biological specimen marriages wants to prepare 1 dm cube of 11.5 M formulas of formaldehyde he requires?

Question 10 ask question of Calcium Hydroxide is prepared by dissolving 5.2 gram milligram of calcium hydroxide to a total volume of 100000 cm cube calculate the molarity of the solution.

Question 11 calculate the number of moles of solute present in 1.25 cm cube of 0.5 molar Phosphorus solution.

Question 12 calculate the new molarity when 100 cm cube of water is added to under cm cube of 0.5 molar HCL.

Question 13 how are solutions useful for society give three example

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