Q37 · Practice questionComplex familiar4 marks
QUESTION 37 (4 marks)
Equal volumes of silver nitrate and sodium chloride are mixed. For silver chloride, .
a) Calculate the ion concentrations immediately after mixing, before precipitation. [2 marks]
b) Determine whether a precipitate forms. Justify quantitatively. [2 marks]
WORKED SOLUTION
4 marksPractice marking scheme
, ; AgCl precipitates.
Both solutions are diluted by a factor of two. .
- Correct diluted silver concentration. [1 marks]
- Correct diluted chloride concentration. [1 marks]
- Calculates Qsp = 2.0 × 10⁻⁸. [1 marks]
- States precipitation because Qsp > Ksp. [1 marks]
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