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How much salt and how much sweet?

By the way, which freezes "faster" is not a question that scientists tend to study a lot. They're more likely to be interested in the freezing point. At the same temperature, something with a lower freezing point will probably freeze slower, but quantifying this is complicated.

Anyhow, that aside, adding any solute to a solvent lowers the freezing point. The amount the freezing point is lowered depends on the solvent and on the amount of solute that was added (measured in moles). Solutes that dissociate into multiple species in solution count multiple times (so adding one mole of table salt, which dissociates into one mole of sodium ions and one mole of chloride ions, lowers the freezing point of a certain amount of water twice as much as adding one mole of sugar, which doesn't dissociate). However, remember that it's the number of moles, not the volume or weight directly, that matters.

If you have specific quantities in mind, you could calculate the molality of the resulting solutions (remember that table salt counts twice) and multiply that by the molal freezing point depression of water (about 1.85 K kg/mol) to find out exactly how much the freezing point was lowered in each case.

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How long do it take salt water or water to freeze and which one freeze quicker?

Salt water takes longer to freeze than plain water because the salt lowers the freezing point of the water. The time it takes for either to freeze depends on the temperature of the environment and the concentration of salt in the water. Generally, plain water will freeze faster than salt water in the same conditions.


Which water freezes faster salt water or sugar water?

Sugar water freezes faster than salt water. However, regular tap water will freeze faster than either salt, or sugar water.


Which water will freeze faster cold water or hot water with salt?

Hot water with salt will freeze faster than cold water because the salt lowers the freezing point of water. This means that the hot water with salt will need to cool to a lower temperature before it can freeze, making the freezing process faster compared to cold water.


Which water will freeze faster salt water or fresh water?

Fresh water will freeze faster than salt water, and at a higher temperature too. Why?Salt water is called salt water due to its containing dissolved salts -- usually Sodium Chloride (NaCl), but any other salts will do. When water freezes, the molecules link up into a crystal structure (ice). The atoms of any dissolved salts will interfere with the formation of the crystal, meaning more energy will have to be taken out (the temperature will have to drop lower) before salt water freezes.


Does salt water freeze faster than cold?

Salt doesn't make water freeze faster or slower.Actually, it is not a question of faster or slower, but of the freezing point, or the temperature at which the water freezes. Salt added to water decreases the freezing point. So, on a day when the temperature reaches 32 degrees Fahrenheit, water with salt in it will simply not freeze (this is why fast or slow has nothing to do with it). The more salt, the lower the temperature must go in order for the water to freeze. This is true until the water reaches its saturation point (holds as much as salt as it can in solution), then adding more salt will not make a difference.