Chem

Finding out the concentration of ethanoic acid in 2 brands of acetum and determine which one is the better buy (plan) gun and chemicals -2 volumetric flaskful (250 cm3) -dropper -3 beakers (250 cm3) -filter funnel shape -burette (50 cm3) -pipette (25 cm3) -pipette makeweight -conical flask (250 cm3) -stand and burette clamp -white tile - flexible swoshbottle -distilled urine -standard atomic number 11 hydrated oxide theme (approximately 0.1 M) -2 brands of colorless moneymaking(prenominal) vinegar in its veritable bottle (approximately 50 cm3 each) -phenolphthalein power Safety precautions Handle acids and themes with care. In geek any acid or alkali gets into eyes, report card to teachers immediately, and squawk the eyes under running water for at least 3 minutes. If any acid or alkali gets onto skin, wash the affected area with plenty of water. Experimental appendage 1. Dilute commercial vinegar brand A 10 propagation as follows: (a) Wash the pipette with water, then with the vinegar A. (b) Using a pipette filler and the washed pipette, convert 25.0 cm3 of the vinegar A into a 250.0 cm3 volumetric flask. (c) Pour distilled water from a plastic wash bottle through a filter funnel into the volumetric flask, to a level 2 cm on a set about base the graduation mark.

(d) Add distilled water from a dropper until the abase meniscus of the stem just rests on the graduation mark. (e) constrict the stopper in position, invert the flask several time to mix the contents well. 2. (a) Wash the pipette with water, then with the diluted vi negar A solution. (b) Using a pipette fi! ller and the washed pipette, transfer 25.0 cm3 of the diluted vinegar A solution into a clean conical flask. (c) Add 2 drops of phenolphthalein index finger to the flask. 3. (a) Wash the burette with water, then with the standard sodium hydrated oxide solution provided. (b) Fill the burette with the sodium hydroxide solution. (c) pose up the apparatus as shown. [pic] (d) Take the initial burette reading (to 2...If you want to get a full essay, key out it on our website: OrderCustomPaper.com

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