34. When salt was mixed with water and petroleum ether, salt dissolved in water but not in petroleum ether. This was because
water is polar and salt is polar
petroleum ether is polar and salt is polar
petroleum ether is non-polar and salt is non-polar
34. When salt was mixed with water and petroleum ether, salt dissolved in water but not...
1) Given a tank initially contains 200 gallons of brine (salt mixed with water) in which 150 lbs of salt is dissolved. A salt solution consisting of 0.5×(1 + e^(-0.02t)) lb. of salt per gallon (where t is time in unit of minute) is flowing into the tank at a rate of 10 gal./min and the mixed solution is drained from tank at the same rate. Find the amount of the salt in the tank after 1 hour. (10 points)...
When dissolved in water, this salt will produce a solution that is NOT neutral. Select all that are True. NH4I CH4 CuCl2 Cs2HPO4 BaBr2
When dissolved in water, this salt will produce a solution that is NOT neutral. Select all that are True. A: NH4I B: Cs2HPO4 C: KCl D: CH4 E: BaBr2
When dissolved in water, this salt will produce a solution that is NOT neutral. Select all that are True. OKCI NaBr BaBr2 CS2HPO4 CH4 Submit Answer Tries 0/98
When 0.049 grams of a salt are dissolved in 45.3 grams of water in a calorimeter, the solution's temperature drops from 25.3° C to 23.4° C. Assume the specific heat of the solution is the same as that of water: 4.18 J/g°C. What is AHn in kl/g salt? a) - 0.36 kl/g b)+0.36 kl/g c) - 7.4 kl/g d)+7.4 kl/g 8. Next page
8 4 points When a 0.456 g sample of salt is dissolved into water in a completely insulated calorimeter (a simple styrofoam coffee cupl. the temperature of the 500 ml water decreases by 0.940°C. What is the heat for the system (the salt dissolving)? O 1.79kJ 0 +1.80 kJ O +214) O 0.214 - 1.96 kJ +1.97 Ooo
A tank initially contains 500 gallons of water in which 40 pounds of salt is initially dissolved in the water. Brine (a water-salt mixture) containing 0.4 pounds of salt per gallon flows into the tank at the rate of 5 gal/min, and the mixture (which is assumed to be perfectly mixed) flows out of the tank at the same rate of 5 gal/min. Let y(t) be the amount of salt (in pounds) in the tank at time t. a) Set up...
The distribution coefficient for a compound are: Benzene-water; KD= 5.5 Petroleum ether-water; KD= 5.0 Methylene chloride-water; KD= 1.0 Which is the best choice of solvent for extracting the compound from an aqueous reaction mixture? Explain your answer.
2. You found that naphthalene is more soluble in petroleum ether than water. How do you account for this difference in solubility? 3. Solutions of hydrochloric acid caused the light bulb to glow (or caused the conductivity meter to report a higher value), brighter than solutions of acetic acid. How do you account for the difference in behavior between these two compounds? 4. Hexane is an organic solvent that has a density of 0.6603 g/cm at 20°C. If hexane is...
Silver cobonate Ag2CO3 is a salt of low solubility, when placed in water it dissolved until equilibrium is reached Ag2CO3(s)----> 2Ag+(aq) + CO32-(aq) Write a solubility product constatnt Ksp of silver carbonate.