Chemistry Practical 4

Data Collecting and Processing NO| APPARATUS| meter| circumstances/SIZE| 1| Beaker| 1| 100cm3| 2| Pipette| 1| 25cm3| 3| buret| 1| 50cm3| 4| Conical flaskful| 1| 250ml| 5| volumetrical flask| 1| 250ml| 6| Weighing balance| 1| -| 7| Glass magnetic pole| 1| -| 8| return stand| 1| -| Table1: sweep of quantity and size of mechanism used. NO| MATERIAL| measuring| mass/SIZE| 1| Mass solid amidosulphuric virulent| 2.5688g| -| 2| Sodium hydrated oxide tooth root| 1 breast feeding bottle reagent| -| 3| Phenolphthalein index number| 2 drops| -| 4| Distilled addle| 3 bottle| -| Table2: contestation of quantity and size of temporal used NO| MATERIAL| UNCERTAINTIES ±| VOLUME/UNIT| 1| Burette| 0.05cm3| 50cm3| 2| Pipette| 0.03cm3| 25cm3| 3| Weighing balance| 0.0001g| -| 4| majoritytric flask| 0.15ml| 250ml| Table3: List of utensil with uncertainties Quantitative Data Experiment| tryout 1| Trial 2| Trial 3| trait burette reading (±0.05 cm3)| 0.00| 0.00| 0.00| final examination burette reading (± 0.05 cm3)| 26.60| 26.70| 26.70| spate of NaOH used (±0.10 cm3) | 26.60| 26.70| 26.70| Table1: Volume of Amidosulphuric sulphurous used. 1. Mass of amidosulphuric bitter = 2.5688g (±0.0001g) 2. The amidosulphuric sour is then dissolved with 250cm3 of distilled piss.

soft Data 1. The act upon of atomic number 11 hydroxide, NaOH termination is glossless. 2. The work of amidosulphuric acid after dissolved in water is emblazonless. 3. The phenolphthalein exponent colour is colorless. 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 change from colourless to light pink when it was titrated with sodium hydroxide solution, which indicated the end point. Calculation par 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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