blackflame

How to get KNO3:

Go to the nearest Home Depot or Lowe's and Buy stump remover...

the stump remover is 99.9% Potassium Nitrate

I have used it often.. it usually goes for around 6 dollars for 2 pounds

well thank you very much

hello everyone i hope you can help me out....

Today my chemistry teacher gave us this experiment:

to find out why the percent yield of the production of CO2, that you get from the reaction when a alka-selzer is put into water, is only 1-6%

the chemical reaction is as follows

NaHCO3 + H20 ---> CO2 + H2O + NaOH

I used 1.78 grams of Alka-selzer (NaHCO3) or 0.02119 moles

After doign the math on paper i should be getting 0.02119 moles of CO2, but in reality i can only collect .000447 moles.

Could anyone explain as to why it is such a lower percent yield?

My teacher also said that the secret lies within the indegeridents, (which are asprin, and citric Acid)

(please forgive my spelling i was in a rush to get to work)

Thanks in advance,

Greg