CHEM 18a Final: Chem Lab Test 2 review
30 Nov 2016
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This tells us the relative error in precision. This measures how accurate the value we got in the experiment is to the real or true value. The term t is dependent on the number of measurements in the experiment and the confidence level. K2(cu(c2o4)2). nh2o for cu, the number of waters produced was 3. 558. Titration is the procedure of determining the volume of a solution required to reach an equivalence point. Equivalence point - a stoichiometric amount of a reagent (the titrant) has been added to the substance being titrated. Endpoint when the titration changes color at the equivalence point. 5c2o4 2- (aq) + 2mno4 - (aq) + 16h+(aq) 10co2(g) + 2mn2+ (aq) + 8h2o(l). 0. 168 g of na2c2o4 required for titration to reach equivalence point. 0. 19 g k3(al(c2o4)3)5h2o or 0. 25 g k2(cu(c2o4)2)5h2o require 25ml to reach equivalence point. How would the following affect kmno4 molarity, precision or accuracy: Primary standard dissolved in too much water = no effect.
