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Question 7 of 100 99. Which solution will provide the lowest freezing point? A) 1.2 M...
Question 30 (1 point) Which of the following aqueous solutions will have the lowest freezing point? a) 0.40 m C2H5OH b) 0.20 m C6H1206 c) 0.10 m CaCl2 d) 0.20 m Naci e) 0.20 m Na2SO4 Question 31 (1 point) The nonvolatile, nonelectrolyte testosterone, C9H2802 (288.4 g/mol), is soluble in ethanol, in 19
8. Which aqueous solution will have the lowest freezing point? A) 0.60 molal sucrose B) 0.50 molal KF C) 0.60 molal glucose D) 0.24 molal Fel3 9, If "A" contains 2% NaCl and is separated by a semipermeable membrane occur? A) NaCI will flow from "A" to "B". B) NaCI will flow from "B" to "A". C) Water will flow from "A" to "B". D) Water will flow from "B" to "A". E) none of the above from "B which...
Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have the same solubility? Solubility Curve Grams of solute/100g H30 to .- 30. 0 10 70 80 90 100 20 30 40 50 60 Temperature (°C) O 93°C 56°C O 85°C 0750 Previous Page Next Page Page 2 of 24 Question 2 (1 point) Saline (salt) solution is 0.9% by mass which is similar to tears, blood, and other body fluids. Which of the following...
29. Which has the lowest freezing point? a. 0.050 M KNO3 b. 0.020 M Na3PO4 c. 0.075 M CaCl2 d. pure water
Which aqueous solution has the lowest freezing point? A. 8.758.75 m sucrose, C12H22O11C12H22O11 B. 8.758.75 m ethanol, C2H6OC2H6O C. 8.758.75 m ethylene glycol, C2H6O2C2H6O2 D. All three solutions have the same freezing point.
Which aqueous solution will have the lowest freezing point? (a) 0.050 m CaCl2 (b) 0.15 m NaCl (c) 0.10 m HCl (d) 0.050 m CH3COOH (e) 0.20 m C12H22O11
B. 0.20 M C. 5.0 M D. 100M 100. A 250-ml sample of a 0.250 M glucose solution contains how much glucose? Glucose has a molar mass of 180 g/mol A. 11,2505 B. 180 C. 2.888 D. 1123 101. A salt solution is made by adding 25.5 g of salt to 135 ml of solution. What is the [w/v) of the salt solution? A. 18.9% B. 5.29% C. 110% D. 15.9% 102. How much of a 35.0X(w/v) glucose solution would...
1) Which salt solution would have the lowest freezing point? a) 0.10 m FeCl, b) 0.20 m NaCl 20.20 m KNO d) 0.50 m CH NH 2) Which of the following 50 g sample of metal would require the most heat to go from 25°C to 100°C? a) iron b) copper c) lead d) they would all require the same amount of heat 3) The reaction A+B -> 2C has a K of 15.8. If the concentrations are currently [A]...
D Question 26 1 pts The freezing point of a 0.0925 m solution of ammonium chloride was found to be 0.325°C. What is the actual van 't Hoff factor for this salt at this concentration [Kr(water) 1.86°C/m] compared to the ideal one of 2? 1.89 1.95 1.90 1.80 1.97
1. Which aq solution has the lowest freezing point? a)0.100 m Li2SO4 b)they all have the same c)0.060 m Na3PO4 d)0.100 m NaNO3 e)0.200 m C3H8O3 2. Pure benzene boils at 80.1 degree C and has a Kb= 2.65. What is the boiling point in degree C. of a solution made from 7.37x10^1 g of naphthalene (mm=128.16 g/mol) and 5.900x10^2 g of benezene?