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
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In ice-cream making, the temperature of the ingredients is kept
below 0.0°C in an ice-salt bath....
Saved ork 2 attempts left Check my work Enter your answer in the provided box. In...
Saved ork 2 attempts left Check my work Enter your answer in the provided box. 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 4.3 kg of ice to -5.0°C?(Ky of water is 1.86°C/m.) The answer should be rounded to 2 significant figures.
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.
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
Homemade ice-cream is frozen by churning it in a bucket suspended in an ice-water-salt mixture. A...
Homemade ice-cream is frozen by churning it in a bucket suspended in an ice-water-salt mixture. A typical mix calls for 1.80 kg of salt (NaCl) and 5.00 kg of ice. Compute the mole fraction of NaCl in this mixture after all the ice melts. Compute the freezing point of this mixture (in °C).
Homemade ice-cream is frozen by churning it in a bucket suspended in an ice-water-salt mixture. A...
Homemade ice-cream is frozen by churning it in a bucket suspended in an ice-water-salt mixture. A typical mix calls for 1.50 kg of salt (NaCl) and 8.25 kg of ice. Compute the mole fraction of NaCl in this mixture after all the ice melts. 0.0531 Compute the freezing point of this mixture (in °C).
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 ∘C...
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 ∘C and rejects heat to a room of temperature 26.0 ∘C. Suppose that a mass 82.0 kg of water at 0.0 ∘C is converted to ice at 0.0 ∘C. a)How much heat is rejected to the room? b)How much energy must be supplied to the device?
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 ∘C...
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 ∘C and rejects heat to a room of temperature 18.0 ∘C. Suppose that a mass 78.5 kg of water at 0.0 ∘C is converted to ice at 0.0 ∘C. a) How much heat is rejected to the room? b) How much energy must be supplied to the device?
A hot gold bar that is 45kg is lowered into a 20kg ice bath that is...
A hot gold bar that is 45kg is lowered into a 20kg ice bath that is 30 percentage ice and the rest water that is in an iron container that has a mass of 2kg. Assume the ice bath and iron container is at thermal equilibrium to start. The final equilibrium temperature is 37 degree C. How much energy input is needed to convert the ice to water? Assuming no energy is lost to the environment and the system is...
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"
Question 1. A 2.700×10−2M solution of NaCl in water is at 20.0∘C. The sample was created...
Question 1. A 2.700×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.3 mL . The density of water at 20.0∘C is 0.9982 g/mL. a.)Calculate the molality of the salt solution. B.) Calculate the mole fraction of salt in this solution. C.) Calculate the concentration of...
Saved ork 2 attempts left Check my work Enter your answer in the provided box. 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 4.3 kg of ice to -5.0°C?(Ky of water is 1.86°C/m.) The answer should be rounded to 2 significant figures.
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
A hot gold bar that is 45kg is lowered into a 20kg ice bath that is 30 percentage ice and the rest water that is in an iron container that has a mass of 2kg. Assume the ice bath and iron container is at thermal equilibrium to start. The final equilibrium temperature is 37 degree C. How much energy input is needed to convert the ice to water? Assuming no energy is lost to the environment and the system is...
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"
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