i need help on these questions. My assigment is due very soon MYSTERY SALT Imagi

Question

i need help on these questions. My assigment is due very soon

MYSTERY SALT

Imagine that you have a barrel of salt, but you forgot to label it. You know it must be either KNO3 or KCl.

You ;ppl at the solubility curves for KNO3 and KCl and you find that at 35 degrees Celsius, 100 g of water can dissolve about 30 g of KNO3, or about 37 g of KCI.

You have a scale, a hot plate, a thermometer, empty beakers, and pleanty of water.

1. How can you determin whether the barrel contains KNO3 or KCI?

2. Explain what you would do and why you would do it.

3. How would your result identify the Mystery Salt?

Explanation / Answer

Take some portion of samples of each (with water) in the small beaker, To this add Silver nitrate, potassium chloride containing solution will precipitate out and potassium nitrate solution does not give ant precipitate.

AgNO3 + KCl---> KNO3 + AgCl (precip.).

AgNO3 + KCl ----> No reaction (No precip.)   

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