Refined version

Topic and general idea of investigation approved, refining needed however.

REVISED EDITION:

My main research idea is to try and investigate the common theory of ‘like dissolves like.’ Although this theory has been chemically proven numerous times, it is my goal to investigate the effects of temperature and mixing various substances to discover any possible grey areas.

General Hypothesis- All substances will be slightly more soluble in water when heated. The mixtures of the oil and the two types of alcohol over heat will create a greater polarity and consequently solubility in water. The soap will mix with the oil and alcohols to  increase their solubility.

Part 1:

Investigate:

1) Oil (hydrocarbon)

2) Ethanol (Alcohol)

3) Butanol (Alcohol)

4) Salt (Ionic & Polar)

 

- Investigate the solubility of the above liquids and solid in water after the liquid has been heated over a constant temperature of 50 degrees.

- In the repeat test heat water to the same temperature instead of the liquid, add the liquid and salt and compare the results (i.e. the time it takes to dissolve).

Part 2:

Mix:

1) Oil (hydrocarbon) + Ethanol (Alcohol)

2) Oil (hydrocarbon) + Butanol (Alcohol)

2) Ethanol (Alcohol) + Salt (Ionic & Polar)

3) Salt (Ionic & Polar) + Oil (hydrocarbon)

 

-These are mixed over a heat of 50 degrees before they are added to the water to investigate the effect of temperature and mixing the substances together on their solubility in water.

Part 3:

- Add liquid soap to:

1) Oil (hydrocarbon)

2) Ethanol (Alcohol)

3) Butanol (Alcohol)

- Investigate whether the mixing of soap with these substances for 2 minutes impacts the solubility of the substance in water.