Question

A student was comparing the solubility of equal amounts of table salt and table sugar at different temperatures.The table below shows the four samples that the student used and the temperature of the water that they were dissolved in.

Sample
Name
Chemical formula
Temperature of water (°C)
1
Table sugar
C12H22O11
80
2
Table sugar
C12H22O11
45
3
Table salt
NaCl
55
4
Table salt
NaCl
63

Which of the samples most likely had the highest solubility?
1
2
3
4

Answer 1

Answer: 1

Reason: Sucrose (table sugar) becomes much more soluble as temperature rises, and 80°C is the highest temperature here. NaCl's solubility changes only slightly with temperature, so the sugar at 80°C will dissolve the most.