Chem Lab

Introduction: In this experiment, calcium chloride was reacted with sodium hydroxide concord to the following fit equation: CaCl2(aq) + 2NaOH(aq) Ca(OH)2(s) +2NaCl(aq) The purpose doing this reaction was to drill stoichiometry calculations. Stoichiometry is the process of keeping track of the quantitative relationship surrounded by reactants and produces in a reaction. In a stoichiometry fuss, the coefficients in the equilibrize equation provide the correction number of moles of each substances that is needed to complete the reaction. Often in a reaction, there is a narrowing reagent since the exact proportions of moles of the reactants are not present. Thus, a change reagent is the reactant that determines how far the reaction will go before do the it to stop since there are fewer moles of it than the proportion requires. When contend a limiting reagent stoichiometry problem, one is given the starting amounts of the reactants which should be conv erted into moles. Next, the problem should be treated as deuce separate problems, and each amount of moles of reactants should be multiplied by the proportion of harvest-feast to reactant. This will solve for the amount of product that can be made with each of the two arctic reactants.

The correct amount of product that can be produced is the little of the two values since that reactant limits the production of product. In this lab, the theoretical dissever down of the equation is found by using the font of stoichiometry problem mentioned above, and the actual stand is how much product is truly form in the lab. The percent yield, a comparison! betwixt theoretical and actual yield, is than found using the equation: percentage yield = (actual yield / theoretical yield) X 100% selective information and Calculations: balance Equation: CaCl2(aq) + 2NaOH(aq) Ca(OH)2(s) +2NaCl(aq) Table 1: Results majority of CaCl2 Added (mL)| Volume of NaOH Added (mL)| potful of Ca(OH)2 Obtained (grams)| 5.00| 2.97| .26|...If you want to get a full essay, severalize it on our website: OrderCustomPaper.com

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