bakin soda lab meshell

bakin soda lab meshell - 0.949Namol xCO +.00xH 4.01NaHCO...

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1.00 g. NaHCO 3 x 1.00 mol NaHCO 3 x 1.00 mol NaHCO 3 x 44.08 g. CO 2 = 0.262 g. CO 2 84.01 g. NaHCO 3 2.00 mol NaHCO 3 1.00 mol CO 2 1.00 g. NaHCO 3 x 1.00 mol NaHCO 3 x 1.00 mol H 2 O x 18.01 g. H 2 O = 0.107 g. H 2 O 84.01 g. NaHCO 3 2.00 mol NaHCO 3 1.00 mol CO 2 0.262 g. CO 2 + 0.107 g. H 2 O = 0.369 g. CO 2 + H 2 O 23.030 g. – 22.686 g. = 0.344 g. CO 2 and H 2 O liberated from the experiment 0.344 g. CO 2 and H 2 O x 1.000 g. NaHCO 3 = 0.932 g. NaHCO 3 0.369 g. CO 2 and H 2 O Percent by mass of NaHCO 3 = gram of NaHCO 3 x 100% gram of Mixture Percent by mass of NaHCO 3 = 0.932 g. NaHCO 3 x 100% = 93.2 % NaHCO 3 1.00 g. Mixture 100% - 93.2% = 6.80% of impurities 1.00 g. Na 2 CO 3 x 1.00 mol Na 2 CO 3 x 2.00 mol HCl = 0.0189 mol HCl 105.99 g. Na 2 CO 3 1.00 mol Na 2 CO 3 0.0189 mol HCl = 0.936 M HCl 0.0202 L HCl 1.00 g. Na 2 CO 3 x 1.00 mol Na 2 CO 3 2.00 mol HCl = 0.0189 mol HCl 105.99 g. Na 2 CO 3 1.00 mol Na 2 CO 3 0.0189 mol HCl = 0.950 M HCl 0.0199 L HCl 0.950 M HCl + 0.936 M HCl = 0.943 M HCl 2 0.0124 L HCl x 0.943 mol HCl x 1.00 mol NaHCO = 0.0117 mol NaHCO 3 1.00 L Solution 1.00 mol HCl 0.0117 mol NaHCO 3 x 84.01 g. NaHCO 3 = 0.983 g. NaHCO 3 1.00 mol NaHCO 3 0.01201 L HCl x 0.943 mol HCl x 1.00 mol NaHCO 3 = 0.0113 mol NaHCO 3 1.00 L Solution 1.00 mol HCl 0.0113 mol NaHCO 3 x 84.01 g. NaHCO 3 = 0.949 g. NaHCO 3 1.00 mol NaHCO 3 0.0117 mol NaHCO 3 + 0.0113 mol NaHCO 3 = 0.0115 mol NaHCO 3 2 0.949 g. NaHCO 3 + 0.983 g. NaHCO 3 = 0.966 g. NaHCO 3 2 Percent by mass of NaHCO 3 = 0.983 g. NaHCO 3 x 100% = 98.3% NaHCO 3 1.00 g. NaHCO 3 Percent by mass of NaHCO 3 = 0.949 g. NaHCO 3 x 100% = 94.9% NaHCO 3 1.00 g. NaHCO 3 94.9% NaHCO 3 + 98.3% NaHCO 3 = 96.6% NaHCO 3 2 100% - 96.6% NaHCO 3 = 3.4% 0.932 g. NaHCO 3 + 0.966 g. NaHCO 3 = 0.949 g. NaHCO 3 2 93.2% NaHCO + 96.6% NaHCO 3 = 94.9% NaHCO 3 2 100% - 94.9% NaHCO 3 = 5.1% of impurities
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Background Information: Baking soda (NaHCO 3 ) constitutes a compound that has numerous practical and economical uses. NaHCO 3 is used in fire extinguishers, household cleaners, fruit cleaner, heavy duty dish cleanser, hand and face wash, tooth and denture cleaner, for cooking and for acid indigestion. The wondrous applicability of baking soda is that it can be created by using a number of methods. The Athenium Baking Soda Company has decided to make baking soda using the method of reacting crystalline ammonium hydrogen carbonate with brine, which is “salt water with a high concentration of sodium chloride, as well as potassium chloride, lithium chloride, and calcium chloride.” NH 4 HCO 3(s) + NaCl (aq) NaHCO 3(aq) + NH 4 Cl (aq) Ammonium hydrogen carbonate + Brine Baking soda + Ammonium chloride When the baking soda is dried and filtered, there may be contaminants present in the residue, such as KCl, LiCl, and CaCl 2 . To analyze the purity composition in their baking soda, as well as the quality of workmanship, structural flaws, composition, and longevity, the Athenium Baking Soda Company has hired our team. In this experiment, we will determine if
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This note was uploaded on 10/07/2010 for the course CHEM 1211L taught by Professor Stanton during the Fall '08 term at UGA.

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bakin soda lab meshell - 0.949Namol xCO +.00xH 4.01NaHCO...

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