Submission of Proposal under Star College Scheme

Chemicals:
Solid KCl, distilled water, distilled acetone for drying


Procedure:

1. 
   Weigh about 1.0000g, 3.0000g and 10.0000g of solid and add in 5 ml, 10 ml and 25 ml dry standard flasks respectively by butter paper. This makes 20%, 30% and 40% mixtures. Add distilled water in small increments by wash bottle and shake the flask carefully in order to dissolve the solid.Dilute the flaskafter the equilibrium has established. Check in which flask it has remained insoluble.
   
2. 
   Insert the flasks in thermostate at 10.00°C and 20.00°C higher temperatures
   
3. 
   Select the pilot solubility percentage range in which solid remains soluble at room temperature as well as 10.00°C and 20.00°C higher temperatures.
   
4. 
   Determine accurate solubility by further selecting appropriatepercentages(by adding 0.0500g )of above solid at room temperature and at 10.00°C and 20.00°C higher temperatures.
   
5. 
   Collect all KCl solutions in a container. The water evaporates and KCl solid can be reused or can be used for preparing saturated KCl solution. Plot the graph of temperature Versus solubility.
   

Observations and Calculations:

Sr. No.	Temperature	Weight of KCl (w)	Volume of water(V)	Solubility (w/V) g/cm^3
1
2
3