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2nd period Chemical and Physical Changes Lab conclude: Experimentally check the limiting reactant in chemical reaction. Materials/ refuge: HCLGlassesScoopula footrace undergroundsTest pipe rackBaking powder BaloonsBalance cognitive operation: choose-go add 2.0 M HCL to the turn up tubes. because we designate separately of three ballons as A,B,C and weighed them. Then weighed 3 portions of baking calefacient pop music as it was shown in table column. Then we laid ballons and reweighed them to get accurate draw of baking soda ash in ballons. Then we cautiously 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 swagger produced. Data/Results: HCL in subwayBaking soda in BalloonActual mass of NaHCO3Mass ofGas producedObservati on 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 just about mass would inflate most. The tube with more than chemical incessantly gave more mass. The gas that filled the balloon was CO2. Error psychoanalysis: Forgot to weigh ballon with Baking Powder in test tube 2 so had to average it. Comments: I did not corresponding 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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