In this experiment is it necessary to decompose all of the KClO₃? Why or why not?

Question

I really need help with this Ideal gas law lab

Answer 1

Can you provide a little bit more context for what the question is asking about? In most intro chemistry contexts you are going to want the entire KClO3 to decompose ... if only a fraction decomposes, then the measured mass of the product is less than the theoretical yields which can lead to an incorrect percent yield calculation and inaccurate data.

But to know for sure, we would need to know more about the context of the experiment you are looking at :)

Answer 2

There's not enough information here to help, but I'd be happy to look at it with you. My guess is yes, it is necessary. But I can see how it wouldn't matter, as long as you knew how much KClO3 actually decomposes.