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"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 exemplar scored 6

"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?”

Examining the effect of temperature on the rate of reaction and determining activation energy using the Arrhenius Plot. - Chemistry IA exemplar scored 4

Examining the effect of temperature on the rate of reaction and determining activation energy using the Arrhenius Plot.

How does temperature (5.0ºC, 10.0ºC, 15.0ºC, 20.0ºC, 25.0ºC, 30.0ºC, 35.0ºC, 40.0ºC) affect the concentration of dissolved oxygen (mg/dm3) in 20.00cm3 of deionised water, measured using Winkler's titration method? - Chemistry IA exemplar scored 7

How does temperature (5.0ºC, 10.0ºC, 15.0ºC, 20.0ºC, 25.0ºC, 30.0ºC, 35.0ºC, 40.0ºC) affect the concentration of dissolved oxygen (mg/dm3) in 20.00cm3 of deionised water, measured using Winkler's titration method?

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 exemplar scored 7

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?

How will heating lemon juice to different temperatures (60, 70, 80, 90, 100 degrees celsius) affect its concentration of ascorbic acid (vitamin C)? - Chemistry IA exemplar scored 4

How will heating lemon juice to different temperatures (60, 70, 80, 90, 100 degrees celsius) affect its concentration of ascorbic acid (vitamin C)?

How does varying the concentration of Iron(III) chloride affect the rate of hydrogen peroxide decomposition? - Chemistry IA exemplar scored 4

How does varying the concentration of Iron(III) chloride affect the rate of hydrogen peroxide decomposition?

Investigation into how varied temperature (20℃, 30℃, 40℃, 50℃, 60℃, 70℃) affect the bleaching capacity of
sodium hypochlorite in removing protein-based stains (egg-yolk) from 100% cotton fabric, measured by the ΔE value
obtained using the Color Identifier Colorimeter app? - Chemistry IA exemplar scored 6

Investigation into how varied temperature (20℃, 30℃, 40℃, 50℃, 60℃, 70℃) affect the bleaching capacity of sodium hypochlorite in removing protein-based stains (egg-yolk) from 100% cotton fabric, measured by the ΔE value obtained using the Color Identifier Colorimeter app?

Investigating the Effect of Ionic Charge of Cation towards the Enthalpy of Solution of Salts - Chemistry IA exemplar scored 5

Investigating the Effect of Ionic Charge of Cation towards the Enthalpy of Solution of Salts

What is the effect of the cooking temperature (10, 30, 60, 80, 100 ºC) of Brassica rapa subsp. chinensis on its content of calcium ions (mg), as measured by the titration volume of 0.01M EDTA (Ethylenediaminetetraacetic acid) required to completely react with calcium (II) ions in a solution of Brassica rapa subsp. chinensis after cooking it for 5 minutes? - Chemistry IA exemplar scored 6

What is the effect of the cooking temperature (10, 30, 60, 80, 100 ºC) of Brassica rapa subsp. chinensis on its content of calcium ions (mg), as measured by the titration volume of 0.01M EDTA (Ethylenediaminetetraacetic acid) required to completely react with calcium (II) ions in a solution of Brassica rapa subsp. chinensis after cooking it for 5 minutes?

How do solutions with a different pH (4, 6, 7, 8, 10) affect the amount of calcium carbonate (in moles) remineralised when left in a fluoride toothpaste solution, as measured by changes in the absorbance value using a colourimeter set to 430nm? - Chemistry IA exemplar scored 5

How do solutions with a different pH (4, 6, 7, 8, 10) affect the amount of calcium carbonate (in moles) remineralised when left in a fluoride toothpaste solution, as measured by changes in the absorbance value using a colourimeter set to 430nm?