FOUNDATIONS OF NATURAL SCIENCE I

NSC 101

 

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HO. 1: EVALUATING THE EFFECTIVENESS OF ANTACIDS

 
 

buret, 50 ml

stand

250 ml erlenmeyer flask

25 ml pipets

50 ml pipets

several clean beakers

mortar and pestle for grinding solid antacid tablets

several comercial antacids, at least five

0.1 m NaOH

0.1 M HCl

methyl orange indicator in dropper bottle

distilled water

graduated cylinder, 100 ml

 
 

HO. 2: PREPARATION OF SOAP [exp.14; HYDROLYSIS OF A FAT (ester)]

 

sodium hydroxide

distilled water 

95% ethanol

cooking oil, fat, or lard 10 g (commercial solid shortening works best)

250 ml beaker

hot plate for steam bath

50:50 Solution of ethanol-water 40 ml:

ethanol, 20 ml

water, 20 ml

magnetic stirring bar or stirring rod

sodium chloride 50 g

water, 150 ml

beaker, 400 ml

ice for ice bath

fast filter paper

ice-cold water

buchner funnel


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CHRISTA RICHARDSON (1998 UPWARD BOUND STUDENT)


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