Lana Uliano: a) some gas probably still escaped from the reaction unless you had a right sealed container...which may explode if too much gas is in it.b) conservation of mass isnt how it sounds. sometimes mass is converted to energy and hence the mass will change. This is only noticeable in nuclear reactions though were the weight change can show up in the 3rd decimal place I believe whereas the chemical reaction weight change will only show up in the 6th decimal place.Therefore my conclusion is probably CO2 escaped from the reaction. Also, be sure to use the exact same balance as the first time. Each balance is different. Be sure to also weigh everything being used before and after the same. Don't change vessels or tin foil and such....Show more
Mario Stricklan: Also, why did the procedure for part II work better than the procedure for part I
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