Tried Every Answer. Nothing Seems To Work. Please Help! Thanks Marks: 0/1 What is the freezing...
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...
Could someone help me solve problems 16 and 17? Thanks What is the freezing point of water made by dissolving 16.63 g of ethylene glycol (CH_2(OH)CH_2(OH)) in 86.97 g of water? The freezing-point depression constant of water is 1.86 degree C/m. Answer: What is the freezing Point water made by dissolving 13.98 g of magnesium chloride in 85.25 g of water? The freezing-point depression constant of water is 1.86 degree C/m. Answer:
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.
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.]
help please asap Question 32 (1 point) What is the pH of a 0.056 M aqueous acetic acid solution? kg = 1.8 x 10-5. Your Answer: Answer Question 31 (1 point) A solution was made by adding 72 g of ethanol, C2H5OH, to 629 g of water. How much would this lower the freezing point? The freezing point depression constant, Kf, of water is 1.86 °C•m-1 and the molar mass of ethanol is 46.08 g.mol-1. (Don't use the degree sign...
Molar Mass Determination by Freezing Point Depression Calculate and enter the freezing point depression of a solution of 57.6 g ethylene glycol (C2H602) in 734 g H20. Kffor H20 is 1.86 °C kg/mol. °C -2.53 1 homework pts Submit Answer Incorrect. Tries 3/5 Previous Tries A solution which contains 71.9 g of an unknown molecular compound in 363 g of water freezes at -3.85°C. What is the molar mass of the unknown? g/mol 1homework pts Submit Answer Tries 0/5 Molar...
1 point What is the freezing point of an aqueous solution prepared by dissolving 113 g potassium carbonate (K,CO3, 138 g/mol) in 2.50 kg water. Use the ideal van 't Hoff factor. [K (water) - 1.86 °C/m) -1.83 °C +1.83 °C -0.609 °C -1.23 °C Previous Submit
1h. A certain pure solvent freezes at 39.8°C and has a freezing point depression constant Kf = 0.777°C/m. What is the predicted freezing point (in °C) of a solution made from this solvent that is (1.90x10^0) m in a non-electrolyte solute? 1i. When (8.23x10^1) g of a non-electrolyte is dissolved in (5.2600x10^2) g of a solvent (with Kb = 0.416°C/m) the boiling point of the solution is 1.50°C higher than the boiling point of the pure solvent. What is the...
please help as soon as possible ergent Question 31 (1 point) A solution was made by adding 87 g of ethanol, C2HOH, to 742 of water. How much would this lower the freezing point? The freezing point depression constant. Kt. of water is 1.86 °C-m-1 and the molar mass of ethanol is 46.08 g-mol-1. (Don't use the degree sign in your answer.) Your Answer: Answer units Question 32 (1 point) What is the pH of a 0.023 M aqueous acetic...