The question makes little sense. One cannot really "add salt" to ice.
Water is made of up 2 hydrogens and one oxygen atom, bonded covalently (this is a very strong bond). Each molecule however is slightly polar, that is to say that while the electrons are shared amongst the three atoms, there is a "bunching" of electrons about the Oxygen atom, and away from the Hydrogen atoms.
Why this is important is that when you mix salt into water, the salt which is NaCl (sodium chloride), and is thus ionically bonded (weak bond) is broken apart by the polar water molecules, and thus forming a slightly stronger ionic bond between each Na/Cl atom and multiple water molecules.
The problem though is that frozen water forms ice due to a specific structural arrangement of water molecules formed by Hydrogen bonding between the polar water molecules. This cannot be achieved when they are bonded to Na/Cl atoms, and thus when freezing the water must expel the salt to form ice.
Similarly salt put on ice cannot be "added" to the structure of ice (it often melts the ice instead and bonds with the unfrozen water).
The solution that will freeze at the lowest temperature is typically one with a higher concentration of solute, as it lowers the freezing point of the solvent through a phenomenon known as freezing point depression. For example, a solution with a high concentration of salt (sodium chloride) in water will freeze at a lower temperature than pure water. Additionally, solutions with certain solutes, such as calcium chloride, can have an even greater effect due to their ability to dissociate into multiple ions in solution.
The freezing point of a solution is lower than the freezing point of the solvent; for this phenomenon a theory exist and an also a formula to calculate the decrease of the freezing point. See the link below.
Salt lowers the freezing point of water, meaning it needs to be colder for the salt water to freeze compared to pure water. The salt itself does not freeze because its freezing temperature is much lower than that of the salt water solution.
No, adding a solvent to water typically lowers the freezing point of the solution, causing it to freeze at a lower temperature than pure water.
The freezing point is an intensive property, not dependent on the amount of of material.
Salt lowers the freezing point of water by the amount of molals of NaCl in the solution. 0°C - 1.86(°C / molal) (NaCl molal). This will find the new freezing point and if the energy is enough to bring salt water below this temperature and turn the solution into ice then the salt water will freeze.
The solution that will freeze at the lowest temperature is typically one with a higher concentration of solute, as it lowers the freezing point of the solvent through a phenomenon known as freezing point depression. For example, a solution with a high concentration of salt (sodium chloride) in water will freeze at a lower temperature than pure water. Additionally, solutions with certain solutes, such as calcium chloride, can have an even greater effect due to their ability to dissociate into multiple ions in solution.
The freezing point of a solution is lower than the freezing point of the solvent; for this phenomenon a theory exist and an also a formula to calculate the decrease of the freezing point. See the link below.
Adding salt to water increases its density and lowers its freezing point. ---------------------- I've just completed a repeated experiment on the effects of salt and the freezing point of water. A saturated salt solution will not freeze at -15 degrees Celsius (my freezer temperature). At exactly -21.1 degrees Celsius the salt begins to crystallize out of the solution, along with the ice, until the solution completely freezes.
it takes about 6 hours
Salt lowers the freezing point of water, meaning it needs to be colder for the salt water to freeze compared to pure water. The salt itself does not freeze because its freezing temperature is much lower than that of the salt water solution.
A 0.5 M sodium hydroxide solution will freeze at approximately 12.9 degrees Celsius (55.2 degrees Fahrenheit), which is the normal freezing point of a 0.5 M NaOH solution.
because they then freeze
No, adding a solvent to water typically lowers the freezing point of the solution, causing it to freeze at a lower temperature than pure water.
Yes, this phenomenon is called freezing-point depression .
The freezing point is an intensive property, not dependent on the amount of of material.
The freezing time for a baking soda and water mixture can vary based on several factors, including the concentration of baking soda, the temperature of the water, and the freezer settings. Generally, a solution with a moderate amount of baking soda may take longer to freeze than plain water due to the lower freezing point of the solution. On average, it could take anywhere from 2 to 4 hours for such a mixture to fully freeze. It's advisable to check periodically to determine the exact freezing time.