I had drill last weekend and my professor said to try my best to conduct the experiment at home. And I have no idea what procedure to take or where...

2. What are some possible impurities in your product?

3. what equation to confirm that sulfate is present in your product.

4. What is one possible test that you could have done to determine if K+ is present in your product?  what equation to represent the outcome of this test K+ is indeed present.