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Q & A: How does the amount of salt affect the freezing point of water?

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Most recent answer: 04/16/2015
Q:
How does the level of salt amount affect the freezing point of fresh water?
- Mia Fermin (age 6)
Florida
A:

A 1 molar salt solution lowers the freezing point by about 3.5°C. 1 molar is about 6 grams of salt for every 100 grams of water. Doubling the amount of salt more or less doubles the effect.

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Mike W.


(published on 04/16/2015)

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