This worksheet is based on a hypothetical experiment. While there are some similarities in the reaction chemistry yo u wil be doing, the data provided in this worksheet is different that you will need to be mindful of adapting these calculations accordingly. Preparation Tip! The CHEM 104 discussion group work packet titled "Thermodynamics" has questions that are airceu userul in preparing for this lab. These questions are indicated by the Erlenmeyer flask "lab" icon in the packet. DETERMINING INITIAL AND REACTION-BASEDCONCENTRATIONS(Part A of Lab) In order to analyze your data, you will need to determine the starting concentrations. Consider the following information for our hypothetical experiment: a. A solution (chemical equation below) is produced by dissolving 0.125 mol of MX2 in 1.00 L H20. MX:(8)+6 H:O0) [M(H:0)."(aq)+2 X(aq aoa) /lmolCAH,0)J = 0.125 mol x Calculate the concentrations of [MH,0)]*" and X in this solytion. CMC1,0 CACH U 0.125mol%a %a/2molX PK, . 250MX IL b. You want to use a stock solution containing 0. 125 M MX, in 5.00 M NaX. Calculate the initial concentrations of [M(H0)%] and X in this solution. NaX caq)Na' (ag) tX (ag) NaX-xJ:500 X 0-50M 5.00M= 5. 251 MCH,0)J = 0. 1251 0. I D5M a 9-7 Chemical Equilibrium and
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