Natural Science Lab C683
Does Adding Salt Increase the Boiling Point of Water?
Introduction and Literature Review:
As Sofia Petrillo would say: “Picture it.” You are in the kitchen and spaghetti is on the menu for tonight’s dinner. You have all the ingredients you need. The tomatoes and on...
Does Adding Salt Increase the Boiling Point of Water?
Introduction and Literature Review:
As Sofia Petrillo would say: “Picture it.” You are in the kitchen and spaghetti
is on the menu for tonight’s dinner. You have all the ingredients you need. The
tomatoes and onions are diced. The ground beef is seasoned and ready to add to
the dish. The only thing missing is the pasta. Time to boil some water! As you
know, you don’t put pasta in a pot without salting the water first. Time is ticking
and the family is hungry. Will adding salt to the water help it boil faster or will it
add more time to the process? Let’s find out!
In an article from livescience.com, the subject of the boiling point of water
with salt is explained. Boiling water requires a lot of energy. The water molecules
have to heat up and become gas. Adding salt to this will increase the time it takes
the water to boil. A higher boiling point is required. The added salt adds more
mass to the water which requires more energy to boil the water. Plain water will
boil faster because it is just the water and the heat. (Does Salt Make Water Boil
Faster, 2016)
, According to an article on mentalfloss.com by Sean Hutchinson, saltwater
requires a higher temperature of heat in order to boil. This is contrary to popular
believe. For years chefs have sworn by adding salt to water to make it boil faster.
Based on science, it is not the case. The water will get hotter, but it doesn’t boil
faster. (Does adding salt to water make it boil sooner, 2016)
Hypothesis:
If table salt is added to water in increasing amounts: 2tbl, 4tbl, and finally
6tbl, the water will boil at a higher temperature. The saltwater with the highest
content of salt added will require a higher boiling point which will take longer to
boil. Previously when cooking, adding salt to the water did take the water longer
to boil than when no salt was added. The independent variable is the amount of
salt being added to the water. The dependent variable is the boiling point of the
water. The constants are the amount of water used, the pot, and the temperature
of the burner.
Method:
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