chemistry lab report help

timer Asked: Dec 6th, 2017
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I need help wrting a lab report for chemistry lab. use the data i provides as well as the outline and how to write a formal lab report for guidance.

Lab 12 data The following balanced equation describes the chemical reaction that took place. NaHCO3 (s) + HC2H3O2 (aq)  NaC2H3O2 (aq) + CO2 (g) + H2O (l) *Molar ratio for each product and reactant from balanced equation for chemical reaction is 1:1* Estimated total volume of quart sized Ziploc bag by filling with water until overflowing and shutting so that no air was inside, then measuring fluid using 1oo-mL graduated cylinder Measured volume: 1190 mL Volume of CO2 gas required to completely inflate bag is equal to measured fluid amount (1.190 L) Calculations to determine moles of CO2 gas: (using STP standard molar volume of 24.465 L/mol @25*C and 1 atm) 1.190 L CO2 / 24.465 L = 0.04864 moles CO2 Determine grams of NaHCO3 solid: 0.04864 moles NaHCO3 x 83.978 grams NaHCO3 (per 1 mole) = 4.085 g NaHCO3 Determine mL of 6 M HC2H3O2 aqueous: 0.04864 moles HC2H302 / 6 Moles (per Liter) = 0.008107 L 0.008107 L x 1000 (mL/L) = 8.107 mL (6M HC2H3O2) Measured amounts placed in clean dry bag: 4.098 g NaHCO3 (s) 8.12 mL 6M HC2H3O2 Reaction proceeded for 30 minutes, with complete inflation of bag at completion of reaction (no more bubbling appearance/fizzing sound). Clear fluid remained at bottom of bag (water and aqueous NaC2H3O2). Claire, I ran three more trials, beginning them before the first trial was completely reacted, and not allowing enough time for them to finish. Because the first trial was accurate, I’m not going to mention the other trials (they weren’t a required part of the lab). So I’m going to use the above stoichiometric and ideal gas law calculations to support the assumption that using stoichiometry to determine the necessary amounts of reactants will result in the desired amount of product/s.

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School: University of Maryland


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