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2nd period Chemical and Physical Changes Lab tar contain: Experimentally check the limiting reactant in chemical reaction. Materials/ preventative: HCLGlassesScoopula footrace undergroundsTest tube rackBaking powder BaloonsBalance cognitive operation: commencement exercise add 2.0 M HCL to the run tubes. thence we designate for each one of three ballons as A,B,C and weighed them. Then weighed 3 portions of baking white pop music as it was shown in table column. Then we laid ballons and reweighed them to get accurate draw of baking carbonated water in ballons. Then we carefully placed ballons on test tube without spilling any of baking soda into flask. After that we bring up the fly so all solid went into liquid. When the reaction was complete, we carefully distant wallow, tied off and weighed. Then subtracted the mass of the ballon to get mass of hit man produced. Data/Results: HCL in subwayBaking soda in BalloonActual mass of NaHCO3Mass ofGas producedObservation Tube 112ml1.3 g1.13g1.

80gfizzer Tube 212ml2.5g2.5g2.15gFizzer Tube 312ml5.0g4.9g2.82gfizzer Conclusions: The amount of gas in the tubes did match my hypothesis. I persuasion the one with most(prenominal) mass would inflate most. The tube with more than chemical ceaselessly gave more mass. The gas that filled the balloon was CO2. Error compendium: Forgot to weigh ballon with Baking Powder in test tube 2 so had to average it. Comments: I did not same this lab because it had a lot of calculations included.If you involve to get a full essay, order it on our website: OrderEssay.net

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