Chemistry Practical 4

Data Collecting and Processing NO| APPARATUS| touchstone| pile/SIZE| 1| Beaker| 1| 100cm3| 2| pipette| 1| 25cm3| 3| Burette| 1| 50cm3| 4| conic flask| 1| 250ml| 5| volumetrical flask| 1| 250ml| 6| advisement balance| 1| -| 7| icing rod| 1| -| 8| Retort stand| 1| -| Table1: sway of quantity and sizing of apparatus used. NO| temporal| QUANTITY| VOLUME/SIZE| 1| Mass straightforward amidosulphuric mordant| 2.5688g| -| 2| Sodium hydroxide tooth root| 1 nursing bottle reagent| -| 3| Phenolphthalein indicator| 2 drops| -| 4| Distilled pee| 3 bottle| -| Table2: List of quantity and size of material used NO| MATERIAL| UNCERTAINTIES ±| VOLUME/whole| 1| Burette| 0.05cm3| 50cm3| 2| Pipette| 0.03cm3| 25cm3| 3| Weighing balance| 0.0001g| -| 4| majoritytric flask| 0.15ml| 250ml| Table3: List of apparatus with uncertainties duodecimal Data Experiment| audition 1| Trial 2| Trial 3| sign burette reading (±0.05 cm3)| 0.00| 0.00| 0.00| concluding burette reading (± 0.05 cm3)| 26.60| 26.70| 26.70| Volume of NaOH used (±0.10 cm3) | 26.60| 26.70| 26.70| Table1: Volume of Amidosulphuric social disease used. 1. Mass of amidosulphuric dosage = 2.5688g (±0.0001g) 2. The amidosulphuric acid is then dissolved with 250cm3 of distilled water.

soft Data 1. The act upon of sodium hydroxide, NaOH solution is glossless. 2. The garble of amidosulphuric acid after dissolved in water is colourless. 3. The phenolphthalein indicator colour is colourless. 4. The amidosulphuric acid remains its own colour which is colou rless although after added with phenolphthal! ein indicator for a few drops. 5. The colour of amidosulphuric acid form from colourless to light pink when it was titrated with sodium hydroxide solution, which indicated the obliterate point. Calculation Equation for the reaction: H3NSO3 + NaOH ? NaH2NSO3 + H2O 1. Sodium hydroxide (NaOH)...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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