Chemistry Practical 4

Data Collecting and Processing NO| APPARATUS| megabyte| 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| advisement balance| 1| -| 7| sugarcoat rod| 1| -| 8| Retort stand| 1| -| Table1: sway of quantity and size of apparatus used. NO| material| QUANTITY| VOLUME/SIZE| 1| Mass stiff amidosulphuric mordant| 2.5688g| -| 2| Sodium hydrated oxide 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/ unit of measurement| 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 decimal Data Experiment| audition 1| Trial 2| Trial 3| sign burette reading (±0.05 cm3)| 0.00| 0 .00| 0.00| closing 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 demigod used. 1. Mass of amidosulphuric sulphurous = 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 colorise of amidosulphuric acid afterward dissolved in water is colourless. 3. The phenolphthalein indicator colour is colourless. 4. The amidosulphuric acid remains its own colour whi ch is colourless although after added with p! henolphthalein indicator for a few drops. 5. The colour of amidosulphuric acid transform from colourless to light pink when it was titrated with sodium hydroxide solution, which indicated the force out 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

If you want to get a full essay, visit our page: write my paper