A solution is a __________ mixture.

(a)

homogeneous

(b)

heterogeneous

(c)

homogeneous and heterogeneous

(d)

non homogeneous

Solubility of NaCl in 100 ml water is 36 g. If 25 g of salt is dissolved in 100 ml of water how much more salt is required for saturation _____________

(a)

12g

(b)

11g

(c)

16g

(d)

20g

A 25% alcohol solution means 

(a)

25 ml alcohol in 100 ml of water

(b)

25 ml alcohol in 25 ml of water

(c)

25 ml alcohol in 75 ml of water

(d)

75 ml alcohol in 25 ml of water

Solubility is the amount of solute dissolved in _____ g of solvent.

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100

Volume persentage decreases with increases in temperature because _____.

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of expansion of liquids

Blue vitriol

(1)

NaOH

Gypsum

(2)

CaO

Deliquescence

(3)

CuSO₄.5H₂O

Hygroscopic

(4)

CaSO₄ .2H₂O

Define the term: Solution.

What is mean by binary solution?

A hot saturated solution of copper sulphate forms crystals as it cools. Why?

Write notes on
i) saturated solution
ii) unsaturated solution

Write notes on any two factors affecting solubility.

Find the mass of potassium chloride would be needed to form a saturated solution in 60 g of water at 303 K? Given that solubility of the KCl is 37 / 100 g at this temperature.