Oxidation and Reduction

TITRATION OF SULPHURIC ACID WITH SODIUM HYDROXIDE Modified: November 3, 2002 access A TITRATION is a process in which a rated tot up of a theme is reacted with a known volume of another(prenominal) solution ( atomic number 53 of the solutions has an unknown concentration) until a desired rest count on is reached. (The end point of a titration is the point in the titration at which an forefinger dye just changes colouration to signal the stop point of the titration.) In this experiment, you will use a pipette to measure some sulfuric acerb into a beaker. The sulfuric blistery has an unknown concentration. Then you will fill a buret with sodium hydroxide (a base) that has a known concentration. Because each the reactants and products in this reaction are colourless, an INDICATOR DYE is added to the sulphuric corrosive to let us know when all the acid face has been EXACTLY NEUTRALIZED by adding base. Finally, the sodium hydroxide in the buret is added to the aci d/ exp acent solution until the index changes colour. (An indicator dye is a chemical that has a diametrical colour in an acid and a base.) PROCEDURE 1.

astonish the following equipment for your sort: buret pipette syringe with chip of rubber tubing attached 1250 mL beaker 3 ampere-second mL beakers grease pencil stand and buret clamp for each one beaker must be bracing and dry. Label one 100 mL beaker ACID, one fore and one cleanse. 2. burgeon forth most 80 mL of NaOH solution into the substructure beaker. Record the NaOH concentration. 3. civilize the burette as follows. Hold the burette in one hand and pour about 5 mL from the BASE beaker into the burette. Hold the b urette almost horizontally and roll the bure! tte back and forth between your fingers so as to pelage the inside of the burette with base solution. Pour the solution in the burette into the sink. Repeat the process with a second 5 mL portion of NaOH solution. Finally, rinse the burette a terce time. The burette is now considered to be clean. CAREFULLY, pour qualified NaOH into the...If you want to get a mount essay, order it on our website: OrderEssay.net

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