STPM Semester 1 Biology Experiment 5 : Germinating and ungerminating seeds



   These are the answers and part of the manual. Unfortunately I deleted the first page so I only have the rest. Sorry for that. If I found it, I would include it as well.







 









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STPM Semester 1 Chemistry Experiment 1 : Volumetric Analysis - Stoiciometry

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  Here are the answers to the experiment.   Report   Day : Date : Topic : Volumetric Analysis - Stoichiometry Purpose : To determine the exact concentration of a monobasic acid, HX Apparatus : 250 cm3 volumetric analysis with stopper, 25.0 cm3 pipette, 50.00 cm3 burette, retort stand with clamp, filter funnel, glass rod, pipette pump, electronic balance, conical flask, 50 cm3 beaker, dropper, spatula, 250 cm3 beaker Materials : Phenolphthalein as indicator, distilled water, solid sodium hydroxide, NaOH, monobasic acid, HX Theory introduction : Neutralisation occur when an acid react with base. In laboratory, the concentration of an unknown acid can be determined using titration technique. Therefore, this experiment is conducted to determine the unknown acid concentration. Procedure :        Part A A spatula was used to transfer solid sodium hydroxide, NaOH, into a 50cm3 beaker placed on a electronic balance. 5.02 g* of solid sodium hydroxide, Na
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