# Problem: A student mixes 10.0 g of KCIO 3 with 45.0 g of H 2O and stirs it for a long time at 60 °C until the solution is completely clear, then allows it to cool slowly to 20 °C where it remains clear. Which statement about the final clear mixture at 20 °C is correct?a) It is a saturated solution.b) It is an unsaturated solution and can be made saturated by decreasing the temperature.c) It is an unsaturated solution and can be made saturated by increasing the temperature.d) It is a supersaturated solution.

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###### Problem Details

A student mixes 10.0 g of KCIO 3 with 45.0 g of H 2O and stirs it for a long time at 60 °C until the solution is completely clear, then allows it to cool slowly to 20 °C where it remains clear. Which statement about the final clear mixture at 20 °C is correct?

a) It is a saturated solution.

b) It is an unsaturated solution and can be made saturated by decreasing the temperature.

c) It is an unsaturated solution and can be made saturated by increasing the temperature.

d) It is a supersaturated solution.

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Based on our data, we think this problem is relevant for Professor Petrovich's class at NCSU.