Solubility - Jamb Chemistry Past Questions and Answers

Question 81:

• JAMB 2018

The solubility of the solids that dissolves in a given solvent with the liberation of heat will

A. Increase with an increase in temperature
B. Decrease with an increase in temperature
C. Decrease with a decrease in temperature
D. Not be affected by changes in temperature

Question 82:

• JAMB 2018

At what temperature is the solubility of potassium trioxonitrate(V ) equal to that of sodium trioxonitrate (V)?

A. 0\(^o\)c
B. 30\(^o\)c
C. 40\(^o\)c
D. 45\(^o\)c

Question 83:

• JAMB 2018

From the graph above, it may be concluded that

A. AgNO\(_3\) is probably not soluble at 1100
B. NaCl is insoluble in water
C. Pb(NO\(_3\))\(_2\) is more soluble than KCIO\(_3\)
D. The solubility of KCIO\(_3\) exceeds that of NaCl at all temperature

Question 84:

• JAMB 2019

At 27°C, 58.5g of sodium chloride is present in 250cm\(^3\) of a solution. The solubility of sodium chloride at this temperature is?
(molar mass of sodium chloride = 111.0gmol\(^{-1}\))

A. 2.0 moldm\(^{-3}\)
B. 0.25 moldm\(^{-3}\)
C. 1.0 moldm\(^{-3}\)
D. 0.5 moldm\(^{-3}\)

Question 85:

• JAMB 2019

What volume of 0.100M sodium trioxonitrate (V) solution contains 5g of solute.
[Na = 23, N = 14, O = 16]

A. 1.7 litres
B. 0.420 litres
C. 0.588 litres
D. 2.35 litres