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You have 100 moles of solvent (not water). You have determined that 100g of dissolved sucrose incrases its boiling point temperature by 10C. For 100 moles of the pure solvent, how much mass (in grams) of salt (NaCl) is needed to increase the boiling point temperature of the now solvent-salt solution by 20C?
Given: Sucrose: molar mass: 342.3 g/mol
Salt: NaCl, molar mass: 58.44 g/mol
Calculate the mass of nitrogen dissolved at room temperature in an 81.0L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
Determine how much heat is evolved or absorbed when 30.0 g of lithium iodide completely dissolves in water.
calculate E when 830.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm.
Determine the pH of the solution resulting from the combination of 40.0 mL of 0.200 M Perchloric acid and what is the mass in mg
Benzene has a heat of vaporization of 30.72;{{rm{kJ}}}/{{rm{mol}}} and a normal boiling point of 80.1 ^circ {rm{C}}. At what temperature does benzene boil when the external pressure is 420 torr?
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water.
Calculate the solubility of zinc hydroxide, Zn(OH)2, in 1.00 M NaOH. Ksp = 3.0 × 10-16 for Zn(OH)2, Kf = 3.0 × 1015 for Zn(OH)42-
If at a given moment O2 is reacting at a rate of 0.317 mol/L s, what is the rate of formation of H2O?
The heat of fusion of ice (the heat associated with ice melting) is 6.0 kJ/mol. Find the temperature of the coffee after the ice melts.
What are the n and l quantum numbers of the electron removed when Bi is ionized to Bi+ and would you expect element 115 to have ionization energy greater than, equal to, or less than that of bismuth? Explain.
determine the solubility of CO2 in soda water at 25 degreeC if the pressure of CO2 is 5.2 atm
What is the concentration of an ammonium chloride solution prepared by using 0.5L of water to dissolve the product of the reaction of 1.25 L of ammonia gas at 22 degrees C
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