Question

Question 19.
A sample of Substance 2 (40.0 g) was placed in 1000 mL of water. The solution was heated and stirred until all of the solid had
dissolved. The sciution was then cooled down to 20 °C. At this stage some of the solid had recrystallised out of solution.
Approximately what mass of Substance 2 recrystallised?
A.
10g
B.
20 g
C.
30 g
D.
35 g​

Answer 1

Answer:

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