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How does changing the concentration of copper (II) sulphate solution (0.2M, 0.4M, 0.6M, 0.8M, and 1.0M) affect the voltage of a copper-magnesium galvanic cell at constant concentration of magnesium sulphate solution, temperature of copper sulphate and magnesium sulphate solution, and concentration of potassium nitrate solution, measured by a voltmeter?
Chemistry
IA
6
SL
Pro
"How does the temperature change (20°C, 40°C, 60°C, 80°C and 100°C) affect calcium concentration (mg) in soya milk, measured by using Ethylenediaminetetraacetic acid (EDTA) Complexometric titration?”
Chemistry
IA
6
SL
Pro
Investigating how increasing temperatures of water (40°C, 50°C, 60°C, 70°C, 80°C, 90°C, 100°C) in which cloves are steeped affect the concentration of quercetin, measured by a spectrophotometer
Chemistry
IA
5
HL
Pro
How does temperature (ranging from 10℃ to 50℃) affect the rate of the iodine clock reaction, and what is the relationship between temperature and reaction rate? Specifically, how can the reaction rate be determined from the time taken to reach the blue-black endpoint, and how can this data be analysed using the Arrhenius equation to estimate the activation energy of the reaction?
Chemistry
IA
5
HL
Pro
As determined by the reaction rate constant, which catalyst from baker’s yeast, baking powder, and manganese (IV) oxide is the most effective at catalyzing the decomposition of 3% hydrogen peroxide?
Chemistry
IA
7
HL
Pro
How does varying the concentration of Iron(III) chloride affect the rate of hydrogen peroxide decomposition?
Chemistry
IA
4
SL
Pro
Investigating the Effect of Ionic Charge of Cation towards the Enthalpy of Solution of Salts
Chemistry
IA
5
SL
Pro
How does the boiling time (0.00, 240.00, 480.00, 720.00, 960.00, 1200.00 seconds) affect the amount of ionic calcium (in mg) in cow’s milk determined using Ethylenediaminetetraacetic acid (EDTA) complexometric back titration using Eriochrome Black T indicator?
Chemistry
IA
7
HL
Pro
Investigating The Content of Tannin in Tea Affected by Steeping Time Using a Colorimeter
Chemistry
IA
3
HL
Examining the effect of temperature on the rate of reaction and determining activation energy using the Arrhenius Plot.
Chemistry
IA
4
SL
Pro