CHEM 111 Study Guide - Midterm Guide: Lithium Hydroxide, Chemical Equation, Molar Attenuation Coefficient
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Always watch for significant figures in the problem. Buret readins (2 past decimals) and analytical balance (3 past decimals) Lab 4 determination of the vitamin c content in juice. Not used to heat substances or store solutions. Add solvent until the meniscus is aligned with the mark when viewed directly at eye. Always keep one hand on the pipet itself. Do not blow out the last little bit of liquid from the pipet tip. Titration - volumetric analysis technique used to determine the amount of a chemical in a solution of unknown concentration. Controlled delivery of the titrant using a buret to the analyte until the stoichiometric point (enough titrant has been added to react exactly with the analyte) is reached. Stoichiometric point - when color change due to the presence of an indicator. Prepare a buret: rinse, fill, fill tip, take initial reading. If meniscus on a linelast digit is 0.