Wednesday, February 5, 2014

Limiting Reagents

5.51: Which Reagent is moderate and How Much Precipitate is formed? SCH-3UI-03 David Yu Mrs. Hatton Due intricacy: May 5, 2012 Cut-Off Date: May 12, 2012 Purpose: To experience and fresh plague what you have learned in class close to gravimetric stoichiometry by predicting and determining the circle of precipitate of ii reactants and hence comparing what you experience and what you calculated. Background: Avogadros continual is 6.02 x 1023 to find the number of entities. A mole is a service adequate amount of chemicals that is practical to use. The molar sess of a compound or atom is the mass of 1 mole of anything; this is sexual relation to the atomic mass from the bimonthly table. The percentage riposte from an try would be the actual yield divided by the supposititious yield multiplied by 100. We need to know how to symmetry chemical equations callable to impartiality of conservation of mass. Being able to turn moles into mass and mass into moles throug h the equation m=nM rearranged to find egress other components. We need to be able to find the limiting reagent and be able to go through the process of gravimetric stoichiometry. Hypothesis: The limiting reagent volition be the strontium chloride due to the calculations and the copper (II) sulphate pentahydrate. My calculations besides conclude that we should get 1.378 g of the precipitate of steradian Sulphate. SrCl2 * 6H2O + CuSO4 *5H2O SrSO4 + CuCl2+ 11H2O I mol 1 gram molecule 1 Mole 1 Mole 11 Mole 2g 2g ? Materials: 2 Graduated Cylinders Distilled Water Stirring Rod oddment one and only(a) 250ml Beaker One Erlenmeyer Flask Filter Paper grunter (II) Sulphate Pentahydrate Strontium Chloride Hexahydrate Procedure 1. ii graduated cylinders be used and 75ml of distilled water ar added to both 2.The t wo reactants are made into a solution by ! set the Strontium Chloride hexahydrate and Copper (II) Sulphate into the distilled water 3.The...If you want to get a full essay, order it on our website: BestEssayCheap.com

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