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2nd period Chemical and Physical Changes Lab intend: Experimentally check the limiting reactant in chemical reaction. Materials/prophylactic: HCLGlassesScoopula footrace undergroundsTest electron tube rackBaking powder BaloonsBalance cognitive operation: start-off add 2.0 M HCL to the examen tubes. and then we designate for each one of three ballons as A,B,C and weighed them. Then weighed 3 portions of baking ardent pop music as it was shown in table column. Then we laid ballons and reweighed them to personate accurate draw of baking soda in ballons. Then we guardedly placed ballons on test tube without spilling any of baking soda into flask. After that we upraised 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 flatulence produced. Data/Results: HCL in subwayBaking soda in BalloonActual mass of NaHCO3Mass ofGas prod ucedObservation 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 about mass would inflate most. The tube with more than chemical evermore gave more mass. The gas that filled the balloon was CO2. Error digest: Forgot to weigh ballon with Baking Powder in test tube 2 so had to average it. Comments: I did not desire this lab because it had a lot of calculations included.If you involve to get a full essay, order it on our website: OrderCustomPaper.com

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