in cold climates, salt is added to the roads to melt the ice and snow as...
in cold climates, salt is added to the roads to melt the ice and snow as a safety measure. A saturated solution of NaCl in water has a mass of 260.0 g NaCl per 1.20kg of water. Determine the temperature at which the mixture will freeze (water molar freezing point constant =1.86 C/m) Show all the steps
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in cold climates, salt is added to the roads to melt the ice and
snow as...
Sodium chloride (NaCl) is commonly used to melt ice on roads during the winter. Calcium chloride...
Sodium chloride (NaCl) is commonly used to melt ice on roads during the winter. Calcium chloride (CaCl2) is sometimes used for this purpose too. Let us compare the effectiveness of equal masses of these two compounds in lowering the freezing point of water by calculating the freezing point depression of solutions containing 230. g of each salt in 1.00 kg of water. (An advantage of CaCl2 is that it acts more quickly because it is hygroscopic, that is, it absorbs...
Some salts work better than salt to melt ice on driveways and roads, not only because...
Some salts work better than salt to melt ice on driveways and roads, not only because they depress the freezing point, but because they have a negative enthalpy of solution (delta H_soln). Do some research and propose a salt that might work in this manner.
Both NaCl and CaCl2 are used to melt ice on roads and sidewalks in the winter....
Both NaCl and CaCl2 are used to melt ice on roads and sidewalks in the winter. What advantages do these substances have over sucrose and urea in lowering the freezing point of water?
11.Calculate the mass of sodium chloride, NaCl, required to lower the freezing temperatu re of ice...
11.Calculate the mass of sodium chloride, NaCl, required to lower the freezing temperatu re of ice by 0.50 K. The cryoscopic constant of water is 1.86 K kg mol-1. Assume the salt is 93% ionized. 12. Estimate the change in the normal boiling temperature of an aqueous solution of 12.6 g of phenol, C&H5OH, in 250 cm3 of water. The ebullioscopic constant of water is 0.51 K kg mol1. The molar mass of phenol is 94.12 g mol"
lectrolyte and is used to "salt" streets in the winter to melt ice and snow. Write...
lectrolyte and is used to "salt" streets in the winter to melt ice and snow. Write a reaction to show how this substance breaks apart when it dissolves in water Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ay) or (s). If a box is not noeded, leave it (aq) 10 item attempts remaining Try Another Version Submit Answer
In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath....
In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath. Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 7.1 kg of ice to −5.0°C?(Kf of water is 1.86°C/m.) ____ g
To freeze a solution of water and sodium chloride an ice-salt bath had to be created...
To freeze a solution of water and sodium chloride an ice-salt bath had to be created (containing water and sodium chloride!) with a significantly lower temperature than that of the freezing point of the solutions tested. This was done by adding a large excess of sodium chloride to already frozen water (i.e., ice). Why does this lower the temperature of the ice so significantly? A
To make homemade ice cream, you cool the milk and cream by have a water-salt solution...
To make homemade ice cream, you cool the milk and cream by have a water-salt solution that freezes at -10. °C, what mass of NaCl must you add to 4.0 kg of water? (Assume the van't Hoff factor, i, for NaCl is 1.85, Kp(H20)-1.86 C/m) immersing the container in ice and a concentrated solution of rock salt NaCl) in water. If you want T pt Mass Submit Answer Try Another Version iteen attempts remaining 1 pr
What mass of salt (NaCl) should you add to 1.14 L of water in an ice-cream...
What mass of salt (NaCl) should you add to 1.14 L of water in an ice-cream maker to make a solution that freezes at -11.8 C? Assume complete dissociation of the NaCl and a density of 1.00 g/mL for water and use Kf=1.86 C/m.
If 15.0g of AlClsubscript(3) were added to the ice-water mixture, what would be the freezing point...
If 15.0g of AlClsubscript(3) were added to the ice-water mixture, what would be the freezing point of the solution? Assume the experimental volume of solution was 65.3 mL, the experimental freeing point of solvent water was 0.5 degrees C, and Ksubscript(f) was 1.86 degreesC/M. Please show all work and math, this is for a lab report. Thank you!!
Some salts work better than salt to melt ice on driveways and roads, not only because they depress the freezing point, but because they have a negative enthalpy of solution (delta H_soln). Do some research and propose a salt that might work in this manner.
11.Calculate the mass of sodium chloride, NaCl, required to lower the freezing temperatu re of ice by 0.50 K. The cryoscopic constant of water is 1.86 K kg mol-1. Assume the salt is 93% ionized. 12. Estimate the change in the normal boiling temperature of an aqueous solution of 12.6 g of phenol, C&H5OH, in 250 cm3 of water. The ebullioscopic constant of water is 0.51 K kg mol1. The molar mass of phenol is 94.12 g mol"
lectrolyte and is used to "salt" streets in the winter to melt ice and snow. Write a reaction to show how this substance breaks apart when it dissolves in water Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ay) or (s). If a box is not noeded, leave it (aq) 10 item attempts remaining Try Another Version Submit Answer
To make homemade ice cream, you cool the milk and cream by have a water-salt solution that freezes at -10. °C, what mass of NaCl must you add to 4.0 kg of water? (Assume the van't Hoff factor, i, for NaCl is 1.85, Kp(H20)-1.86 C/m) immersing the container in ice and a concentrated solution of rock salt NaCl) in water. If you want T pt Mass Submit Answer Try Another Version iteen attempts remaining 1 pr
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