[bitsi]

Hi there! Today I just performed a lab with two parts. The first part consisted of determining the percent oxygen present in potassium chlorate. The second part involved a mixture of potassium chlorate and potassium chloride. We heated the test tubes to get rid of the oxygen.

I used 0.98g of the unknown sample.
After heating the mixture, I calculated a loss of  0.13g of oxygen. I'm not sure how to use this information to determine the percent potassium chlorate in the sample.

Thank you for any tips!

[Arkcon]

I'd like to welcome you, bitsi:, the the Chemical Forums but I'd like to ask you to read the Forum Rules{click}.  We like to help you learn to help yourself.  Can you begin to show us your attempt?

OK, start with a balanced chemical equation. Write it out carefully in chemical notation.  Can you can use that to determine how much perchlorate there was in your original sample based on the mass of oxygen?

I'm going to start on the math right now, you mass of oxygen seems ... high to me.

[Hunter2]

Additional the symbol for pottasium is K from Kalium and is not P. P stands for phosphorous.