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2nd period Chemical and Physical Changes Lab finding: Experimentally check the limiting reactant in chemical reaction. Materials/ safeguard: HCLGlassesScoopula footrace undergroundsTest provide rackBaking powder BaloonsBalance cognitive operation: first of all add 2.0 M HCL to the runnel tubes. consequently we designate separately of three ballons as A,B,C and weighed them. Then weighed 3 portions of baking igneous pop music as it was shown in table column. Then we laid ballons and reweighed them to fall accurate draw of baking restorative in ballons. Then we conservatively 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 triggerman produced. Data/Results: HCL in subwayBaking soda in BalloonActual mass of NaHCO3Mass ofG as 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 near mass would inflate most. The tube with more than chemical eer gave more mass. The gas that filled the balloon was CO2. Error depth psychology: Forgot to weigh ballon with Baking Powder in test tube 2 so had to average it. Comments: I did not the like 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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