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¶ … pure water boils at 212 degrees, we often add salt to water to make it boil faster.
This is because saline water has a lower boiling point than fresh water. However, there are different types of salt.
They have different minerals and chemicals in them, and these can affect the boiling point of the water as well.
Describe paper.
Different Types of Salt
Table salt is sodium chloride (NaCl) is the most common type of salt in most kitchens.
Table salt is not salt in its natural form. This is because table salt has iodine added.
This is done by the company because iodine deficiency can lead to poisoning and mental retardation.
Many countries have laws mandating the addition of iodine into salt.
B.
Epsom salt is not sodium chloride. It is magnesium sulfide, or MgSO4.
This salt is often used in bath salts and is a common household item.
It is quite soluble in water and is often found in the ocean.
C.
A third type of salt is sea salt. Chemically this is the same as table salt, but there are differences.
ii. No added iodine. Sea salt is usually quite pure, but sometimes will contain trace minerals.
III. Describe the Research
A.
Each of the three types of salt will be tested for its ability to help water boil.
B.
The other factors will remain the same. So the pot will be the same, and the burner will start at cold each time to ensure consistency.
C.
Then there will be one quart of water and a tablespoon of salt.
D.
One run of the experiment will be done with each salt, and one with fresh water. E.
The time it takes for the quart of water to boil will be measured in each instance.
Prediction
A.
It is believed that the water with the table salt will boil the fastest.
B. The iodine is believed to make it boil faster than table salt.
C. Epsom salts are a wild card, since their reaction with water is unknown.
D. The pure water is expected to take the longest to reach the boiling point.
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