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Since you want your answer in grams of ice we need to convert 351 ml of water to grams. This is very easy for water since 1 ml of water weighs one gram. So we have 351 grams of water.
We need to figure out how much energy we need to remove from the water. If you remove one calorie from one gram of water you will lower the temperature one degree C. So water has a specific heat (c) of 1 cal/g/C
You have 351 grams and you want to drop the temp 20 degrees. You must remove
q = mass x specific heat x temp change
q = 351 grams x 1 cal/g/C x 20 degrees= 7020 calories
now we need to figure out how much ice this will take.
Melting one gram of ice requires 79.7 calories dividing we get
ice required = 7020 calories/79.7 calories/grams = 88.1 grams of ice
What else can I help you with?
How does salt affect the temperature at which ice melts?
Salt lowers the freezing point of water, causing ice to melt at a lower temperature than it would otherwise. This is because salt disrupts the formation of ice crystals, making it harder for them to form and causing the ice to melt at a lower temperature.
Does salt water melt quicker than regular water?
water doesn't melt when salt is added to ICE it lowers the temperature at which water freezes.
Which melts faster salt water or non salty water?
Salt water freezes at a lower temperature, which is why salt is used to melt road ice. In an environment where the temperature is slowly getting warmer as to melt the ice, frozen salt water will melt quicker than ice.
Does adding salt to ice lower its temperature?
Yes, adding salt to ice lowers its temperature because salt disrupts the normal freezing process of water, causing the ice to melt at a lower temperature.
How long does it take for salt water to melt?
The time it takes for salt water to melt depends on various factors such as the temperature of the salt water and the amount of salt dissolved in it. Salt water typically has a lower freezing point than fresh water, so it will begin to melt once it reaches a temperature above its freezing point. This can happen relatively quickly if placed in a warm environment, such as room temperature.
How does salt affect the temperature at which ice melts?
Salt lowers the freezing point of water, causing ice to melt at a lower temperature than it would otherwise. This is because salt disrupts the formation of ice crystals, making it harder for them to form and causing the ice to melt at a lower temperature.
How would ice cubes lower the temperature of the water?
the temperature of ice cubes are lower than the temperature of the water around them. The heat energy from the water is used up in the process of melting the ice, so the water temperature drops.
Does salt water melt quicker than regular water?
water doesn't melt when salt is added to ICE it lowers the temperature at which water freezes.
Do ice cubes melt faster in or outside water?
The temperature of the water and the temperature of the air would have to be factors in the answer. EDIT: Assuming the air and water are the same temperature, it would melt much faster in water. The thermal conduction is much higher.
Will carbonated drinks take longer to melt than water?
No. Carbonated will melt in a shorter time than water. Carbonated drinks have dissolved carbonic acid in them, which will lower the freezing point. (This is similar to how adding salt to ice makes it melt at a lower temperature.) So, if two solutions are frozen at the same temperature and then thawed at the same temperature, the carbonated drink will melt first.
Why do river water levels lower when the temperature gets colder?
Because when the temperature is cold the snow that is at least partially the source of water in the river doesn't melt as rapidly or maybe it doesn't melt at all until the temperature rises.
Which melts faster salt water or non salty water?
Salt water freezes at a lower temperature, which is why salt is used to melt road ice. In an environment where the temperature is slowly getting warmer as to melt the ice, frozen salt water will melt quicker than ice.
Does adding salt to ice lower its temperature?
Yes, adding salt to ice lowers its temperature because salt disrupts the normal freezing process of water, causing the ice to melt at a lower temperature.
Does ice melt or table salt melt ice faster?
The effect of salt (any soluble material will work) is to lower the freezing point of the water, making it melt faster at a given temperature (or melt at all, if the temperature is slightly below the normal freezing point).
How does salt melt ice?
Salt lowers the freezing point of water, causing ice to melt. When salt is added to ice, it disrupts the balance between the solid and liquid states of water, making it harder for ice to stay frozen. This allows the ice to melt at a lower temperature than it normally would.
How long does it takes ice to melt?
Ice (from pure water that is) will melt when the temperature rises from 0 degrees Celsius or higher. The only temperature ice will stay ice is 0 degrees Celsius or lower.
How long does it take for salt water to melt?
The time it takes for salt water to melt depends on various factors such as the temperature of the salt water and the amount of salt dissolved in it. Salt water typically has a lower freezing point than fresh water, so it will begin to melt once it reaches a temperature above its freezing point. This can happen relatively quickly if placed in a warm environment, such as room temperature.
