Could someone help me solve problems 16 and 17? Thanks
Could someone help me solve problems 16 and 17? Thanks What is the freezing point of...
17 Marks: 1 What is the freezing point of water made by dissolving 10.74 g of magnesium chloride in 86.59 g of water? The freezing-point depression constant of water is 1.86 °CIm Answer: 18 Marks: 1 What is the freezing point of water made by dissolving 16.31 g of sodium chloride in 93.18 g of water? The freezing-point depression constant of water is 1.86 °C/m. Answer 19 Marks: 1 What is the freezing point of water made by dissolving 46.18...
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Marks: 0/1 What is the freezing point of water made by dissolving 15.07 g of magnesium chloride in 93.88 g of water? The freezing point depression constant of water is 1 86 °C/m Answer Submit Incorrect Marks for this submission 1 18 Marks: 0/1 What is the freezing point of water made by dissolving 18.68 g of sodium chloride in 91.68 g of water? The freezing point depression constant of...
What is the freezing point of water made by dissolving 15.95 g of sodium chloride in 92.31 g of water? The freezing-point depression constant of water is 1.86 oC/m.
What is the freezing point and boiling point in Celsius of a solution 400 g of ethylene glycol (MW=62 g/mol) dissolved in 500 g of water? The molal freezing point depression constant for water is 1.86 C/m The molal boiling point elevation constant of water is 0.512 C/m Please explain steps
What is the freezing point of water made by dissolving 46.62 g of sugar (C12H22O11) in 91.32 g of water? The freezing-point depression constant of water is 1.86 oC/m.
Molar Mass Determination by Freezing Point Depression Calculate and enter the freezing point depression of a solution of 65.1 g ethylene glycol (C2H602) in 792 g H20. Kffor H2O is 1.86 °C kg/mol. °C 1homework pts Submit Answer Tries 0/5 A solution which contains 60.9 g of an unknown molecular compound in 325 g of water freezes at -3.24°C. What is the molar mass of the unknown? g/mol 1homework pts Submit Answer Tries 0/5
1. What is the freezing point of water made by dissolving 17.62 g of sodium chloride in 86.47 g of water? The freezing-point depression constant of water is 1.86 oC/m. 2. The decay of carbon-14 is first order with a half life is 5657 years. How much of 1.3449 g sample would remain after 9221 years? 3. If the value of KC for the reaction: 2O3(g) --> 3O2(g) is 0.004936, what is the value KP at a temperature of 54.20oC?...
What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of in 115 g of water? [Use these Molar Masses: Ca = 40, N = 14, O = 16. Also, the molal freezing point depression constant for water is 1.86 °C/m.]
A solution of ethylene glycol in water at 20 degrees celsius has a mass percent of 9.78% of ethylene glycol with a density of 1.0108 g/mL. The freezing point depression constant for water (solvent for all solutions) is Kf=-1.86 percent celsius kg/mol and the boiling point elevation constant is Kb=0.512 degrees celsius kg/mol. The density of neat water at 20.0 degrees celsius is 0.9982 g/mL. Answer the following: 1. What is the molarity of the solution? 2. What is the...
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14) The cooling system of a car contains a total of 5.50 L of solution, prepared by adding 1.25 L of ethylene glycol (CH2(OH)CH(OH)] to 4.25 L of water. The density of ethylene glycol is 1.11 g/ml. Calculate the new freezing point of this solution. For water, the Kr= 1.86 °C/m.