Chemistry Practical 4

Data Collecting and Processing NO| APPARATUS| euphony| pile/SIZE| 1| Beaker| 1| 100cm3| 2| pipet| 1| 25cm3| 3| Burette| 1| 50cm3| 4| conelike flask| 1| 250ml| 5| volumetrical flask| 1| 250ml| 6| unhurriedness balance| 1| -| 7| glass rod| 1| -| 8| Retort stand| 1| -| Table1: sway of quantity and size of apparatus used. NO| corporal| QUANTITY| VOLUME/SIZE| 1| Mass substantialness 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/ building block| 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 vicenary Data Experiment| audition 1| Trial 2| Trial 3| sign burette reading (±0.05 cm3)| 0.00| 0.0 0| 0.00| last 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 pane used. 1. Mass of amidosulphuric caustic = 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 warp of amidosulphuric acid by and by dissolved in water is colourless. 3. The phenolphthalein indicator colour is colourless. 4. The amidosulphuric acid remains its own colour which is colourless although after added with phenolphthalein indicator for a few drops. 5. The colour of amidosulphuric acid alter from colourless to light pink when it was titrated with sodium hydroxide solution, which indicated the dismiss 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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