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Salt Water takes longer to freeze than plain water I recently did an experiment for my 8th grade science class, on this subject. I took 1/4 of a cup of salt water, poured it into a cup of water and mixed it up. Measured a cup of water, and poured that into a cup. I put them both in the freezer after a half hour of sitting, so they could become room temperature. I then checked every 2 hours. They both hadn't changed much. After 4 hours, the salt water was all mushy, and so was the tap water. The tap water was more solid than the salt water though. After hours, they both were much more solid. The tap water was completely frozen at this time, but the salt wasn't there all the way.. yet. When I checked the salt water at 8 hours though, the salt water was completely frozen. The salt water has a constant drip on top though, I even left it in there for an extra day, I forgot to take it out - and the drip was still on top! To sum it up, the salt water takes 2 more hours than the tap water to freeze. If you have any questions or comments, message me @ meglovesyouxo@Yahoo.com Thanks!
What else can I help you with?
If a student wishes to test the hypothesis that adding antifreeze to water lowers the freezing point of water. What would be the dependent (responding) variable?
The dependent (responding) variable in this experiment would be the freezing point of the water-antifreeze mixture. This is because the freezing point is what the student measures and observes in response to varying amounts of antifreeze added to the water. Changes in the freezing point will indicate how the addition of antifreeze affects the freezing characteristics of the water.
Why is the thermometer not suitable to measure the freezing point and boiling point of water?
Although a thermometer CAN be used its presence affects the temperature.
Does the amount of salt in 16 oz water affect the freezing?
Yes, the amount of salt in water affects its freezing point. Adding salt to water will lower the freezing point, making it harder for the water to freeze. This is why salt is commonly used to melt ice on roads in cold weather.
How does adding salt affect the freezing point of water and what is the procedure of this experiment?
Adding salt to water decreases the freezing point of the solution. This is due to the salt disrupting the formation of ice crystals in the water, requiring a lower temperature for freezing to occur. To conduct an experiment to demonstrate this, you would need two containers of equal volume filled with water. In one container, add salt to the water and mix it well. Place both containers in the freezer and monitor the temperature at which each container's water begins to freeze. The container with salt added will freeze at a lower temperature than the pure water.
Why does the freezing point affect the freezing of salt water?
It does not, but salt affects the freezing point. All solids are frozen. Each has a different freezing point. Ice is just the freezing point of water. But your computer keys are frozen too. Different substances freeze differently. But for your purposes, compare water to salt water. The salt in the water causes there to be more things in the water that disrupt the tight hydrogen bonds.Since freezing is tighter H-bonds, salt lowers the freezing temperature because it is harder to freeze it now since there is salt in it.
If a student wishes to test the hypothesis that adding antifreeze to water lowers the freezing point of water. What would be the dependent (responding) variable?
The dependent (responding) variable in this experiment would be the freezing point of the water-antifreeze mixture. This is because the freezing point is what the student measures and observes in response to varying amounts of antifreeze added to the water. Changes in the freezing point will indicate how the addition of antifreeze affects the freezing characteristics of the water.
What is the experimental variable of freezing water?
The experimental variable of freezing water would be the temperature at which the water freezes. By changing the temperature, you can observe how it affects the freezing point of water.
How antifreeze affects the freezing point of water?
It lowers the temperature where the mixture will freeze
Does salt affect the temperature of water -boiling point - freezing point?
i would opt for the Freezing point. salt decreases the freezing point of water. so if water would normally freeze at 0C, saltwater would freeze at -3C.
What is the independent variable in this experiment does adding salt to water lower its freezing point?
salt. added by new author: As the amount of salt in the water iw increased the freezing point of water is decreased i.e. lowered. This is a negative correlation.
Why is the thermometer not suitable to measure the freezing point and boiling point of water?
Although a thermometer CAN be used its presence affects the temperature.
A student wishes to test the hypothesis that adding antifreeze to water lowers the freezing point of the water What would be the dependent variable?
The dependent variable would be the freezing point of the solution.
Does the amount of salt in 16 oz water affect the freezing?
Yes, the amount of salt in water affects its freezing point. Adding salt to water will lower the freezing point, making it harder for the water to freeze. This is why salt is commonly used to melt ice on roads in cold weather.
Why does pressure change the freezing point of water?
Pressure affects the freezing point of water by compressing the water molecules, making it harder for them to arrange into a solid lattice structure. Increasing pressure lowers the freezing point because it requires more energy for the water molecules to overcome the stronger intermolecular forces and freeze.
Does freezing temperature change at higher altitudes?
Elevation has minimal affects on the freezing point of water as it doesn't deal with gas molecules as boiling does. Elevation affects the boiling point of water because the air pressure changes with elevation.
How does adding salt affect the freezing point of water and what is the procedure of this experiment?
Adding salt to water decreases the freezing point of the solution. This is due to the salt disrupting the formation of ice crystals in the water, requiring a lower temperature for freezing to occur. To conduct an experiment to demonstrate this, you would need two containers of equal volume filled with water. In one container, add salt to the water and mix it well. Place both containers in the freezer and monitor the temperature at which each container's water begins to freeze. The container with salt added will freeze at a lower temperature than the pure water.
Why does the freezing point affect the freezing of salt water?
It does not, but salt affects the freezing point. All solids are frozen. Each has a different freezing point. Ice is just the freezing point of water. But your computer keys are frozen too. Different substances freeze differently. But for your purposes, compare water to salt water. The salt in the water causes there to be more things in the water that disrupt the tight hydrogen bonds.Since freezing is tighter H-bonds, salt lowers the freezing temperature because it is harder to freeze it now since there is salt in it.
