for the reaction. The oxalic acid is heated before titration because if the temperature is too low‚ the interaction between the acid and the potassium permanganate will move too slowly. Apparatus: 250cm3 conical flasks X2 250.0cm3 volumetric flask 250cm3 beaker 100cm3 beaker Burette White tile Wash bottle Glass rod Burette clamp and stand Pipette Funnel Thermometer (10-110oC)
Free Titration
Introduction Objectives Validate the Beer-Lambert law for KMnO4. To determine the pKa for an acid-base indicator To estimate the equilibrium constant for the formation of complex ion Fe(NSC)²ꭞ The function of part two of the experiment is to find the value of the constant K‚ in the following equilibrium constant: K=[Fe (NSC) ²⁺]/ [Feᶟ⁺] [NCS⁻]‚ while not disrupting the equilibrium. Theory For part one. The majority of chemical compounds are known to absorb UV or visible light. Depending
Premium Chemistry Concentration Laboratory glassware
Hypothesis The optimum temperatures of Alcalase and Savinase will be different. Above and below their optimum temperatures activity will decrease. Biological explanation This investigation is designed to look at the effect of temperature on the activity of the proteases Alcalase and Savinase. By the end of it I hope to know the optimum temperature of both proteases. The substrate I am going to use during the experiments is the protein gelatin‚ which is a translucent‚ colourless‚ brittle solid
Premium Enzyme
mass of the reactant and the mass of the product. Another way to acquire the percent composition is by the Volumetric Method. This method requires measuring the water displaced by the O2 gas. If the experiment is done correctly‚ we should be able to calculate the percent composition of KClO3 by using both methods. Theory: This experiment requires us to use both the Gravimetric and Volumetric methods in order to acquire our percent composition. Since all gasses at Standard Temperature and Pressure
Free Gas Pressure Chlorine
UE/2013-14/555 21-05-2013 QUOTATION To The Principal St Anthony’s College Shillong Sl.no | Description of Goods | Brand & Code. | QUANTITY | Price/each | TOTAL AMOUNT | 1 | Glass pipette‚ capacity: 1 ml | Borosil-70060P01 | 1 | 105.00 | 1800/- | 2 | Glass pipette‚ capacity:2ml | Borosil7060P02 | 20 | 116.00 | 2320/- | 3 | Glass pipette‚ capacity:5ml | Borosil7060P05 | 8 | 128.00 | 1024/- | 4 | Glass pipette‚ capacity:10ml | Borosil7060P06
Premium Bottle Laboratory glassware
Experiment 1 : Redox Titration Using Sodium Thiosulphate Abstract This experiment is to determine the concentration of oxidizing solution using the iodine/ thiosulphate titration where the reducing solution is potassium iodate solution and the oxidizing solution is sodium thiosulphate solution. Potassium iodate solution which is an oxidizing agent is added into an excess solution of acidified potassium iodide. This reaction will release iodine. Potassium iodide is acidified with sulphuric acid
Premium Iodine Titration
EXPERIMENT 5 REDOX TITRATION: TITRATION USING SODIUM THIOSULPHATE Objectives 1. 2. To prepare a standard solution of potassium iodate for use to determine the concentration of sodium thiosulphate solution accurately. To acquire the proper techniques of carrying out a titration. Introduction Redox titrations using sodium thiosulphate as a reducing agent is known as iodometric titration since it is used specifically to titrate iodine. The reaction involved is: I2 + 2Na2S2O3 I2 + 2S2O322NaI + Na2S4O6
Free Titration Iodine
Purpose: The purpose of the pipet calibration is to determine the accuracy and precision of 10ml of water at room temperature by using a 10ml volumetric pipet. Also‚ analyzing the analytical balance and the density of water from literature reference. Experimental: Description of glassware‚ equipments‚ and materials: 10 ml volumetric pipet (+0.02ml) Computer program: Excel oven (1) 50 ml beaker Thermometer desiccator (1) 250 ml beaker #1 stopper DI water (1)
Premium Density Sample size Standard deviation
density and using calibration curving showing the density and concertation of standard solution. The procedure used in this experiment was 2 50mL beaker and 10-mL volumetric pipet & pipet pump. 40 mL of deionized water was poured into a 50 mL beaker. Then 10 mL of that deionized water (0% sugar solution) was pipet‚ using the volumetric pipet‚ into the other 50 mL beaker and its weight was recorded. After that another 10 mL of deionized water was pipet into the beaker already containing 10mL of deionized
Premium Water Chemistry Concentration
potassium manganate(VII) may form part of your Practical Assessment. Intended lesson outcomes By the end of this practical you should be able to: • perform a titration involving potassium manganate(VII); • read a burette and use a pipette; • use a volumetric flask; • record your titration results appropriately in tables you have drawn yourself; • use and understand an ionic equation; • use the mole concept to perform calculations. Background information Iron performs a vital role in our bodies. It is
Premium Titration Iron