JAMB Chemistry 2013 Objective — Question 15
Question 15 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2013 Objective paper, with the correct answer and a full explanation.
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If 24.4g of lead(II) trioxonitrate(V) were dissolved in 42g of distilled water at 20°C, calculate the solubility of the solute in gdm⁻³.
- A. 5.810
- B. 58.100
- C. 581.000Correct
- D. 0.581
Explanation
Volume of water = 42cm³ = 0.042dm³ (taking density of water as 1gcm⁻³). Solubility = 24.4g ÷ 0.042dm³ = 580.95 ≈ 581gdm⁻³.
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