The normal freezing point of water (H2O) is 0.00 °C and its Kfp value is 1.86...

The normal freezing point of water (H₂O) is 0.00 °C and its K_fp value is 1.86 °C/m. A nonvolatile, nonelectrolyte that dissolves in water is sucrose .

How many grams of sucrose, C₁₂H₂₂O₁₁ (342.3 g/mol), must be dissolved in 233.0 grams of water to reduce the freezing point by 0.350 °C?

Expert Solution

queen_honey_blossom answered 8 months ago

The freezing point of water, H2O, is 0.000 °C at 1 atmosphere. Kf(water) = -1.86 °C/m...

The freezing point of water, H2O, is 0.000 °C at 1 atmosphere. Kf(water) = -1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.70 grams of the compound were dissolved in 205.9 grams of water, the solution began to freeze at -0.587 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound ? ________ g/mol

The freezing point of water H2O is 0.00°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves...

The freezing point of water H2O is 0.00°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in water is urea . How many grams of urea, CH4N2O (60.10 g/mol), must be dissolved in 290.0 grams of water to reduce the freezing point by 0.300°C ? g urea?

A. The freezing point of water H2O is 0.00°C at 1 atmosphere. How many grams of...

A. The freezing point of water H2O is 0.00°C at 1 atmosphere. How many grams of iron(II) nitrate (179.9 g/mol), must be dissolved in 228.0 grams of water to reduce the freezing point by 0.300°C ? _____ g iron(II) nitrate. B. The freezing point of water is 0.00°C at 1 atmosphere. If 14.42 grams of ammonium acetate, (77.10 g/mol), are dissolved in 165.8 grams of water ... The molality of the solution is _______ m. The freezing point of the...

part A The normal boiling point of water, H2O is 100.00 °C and its Kbp value...

part A The normal boiling point of water, H2O is 100.00 °C and its Kbp value is 0.512 °C/m. Assuming complete dissociation of the electrolyte, if 11.22 grams of sodium nitrate (NaNO3, 85.00 g/mol) are dissolved in 236.2 grams of water, what is the boiling point of the solution? part b The normal freezing point of water, H2O is 0.00 °C and its Kfp value is 1.86 °C/m. Assuming complete dissociation of the electrolyte, if 10.25 grams of potassium iodide...

calculate the freezing point of water (Kf= 1.86 C/m) for an ideal solution of sodium phosphate...

calculate the freezing point of water (Kf= 1.86 C/m) for an ideal solution of sodium phosphate which has a concetration of 3.25 m .

The freezing point of benzene is 5.5°C. What is the freezing point of a solution of...

The freezing point of benzene is 5.5°C. What is the freezing point of a solution of 2.80 g of naphthalene (C10H8) in 355 g of benzene (Kf of benzene = 4.90°C/m)? Please answer in how many degrees of Celcius

The normal freezing point of camphor is 176◦C. When 0.220 mol of a certain solute is...

The normal freezing point of camphor is 176◦C. When 0.220 mol of a certain solute is dissolved in 10 kg of camphor (Kf = 37.8 ◦C/m), the freezing point is decreased to 173.50◦C. What is the identity of the solute? 1. Ba3(AsO3)2 2. KBr 3. sugar 4. Na3PO4 5. CaBr2

An unknown material has a normal melting/freezing point of -24.4 °C, and the liquid phase has...

An unknown material has a normal melting/freezing point of -24.4 °C, and the liquid phase has a specific heat capacity of 160 J/(kg C°). One-tenth of a kilogram of the solid at -24.4 °C is put into a 0.157-kg aluminum calorimeter cup that contains 0.198 kg of glycerin. The temperature of the cup and the glycerin is initially 26.1 °C. All the unknown material melts, and the final temperature at equilibrium is 19.9 °C. The calorimeter neither loses energy to...

Would you have affected the freezing point of water as much as you affected the freezing...

Would you have affected the freezing point of water as much as you affected the freezing point of benzene? Explain using the Df for each solvent as part of your explanation.

Part A A solution of water (Kf =1.86 ∘C/m) and glucose freezes at − 4.75 ∘C....

Part A A solution of water (Kf =1.86 ∘C/m) and glucose freezes at − 4.75 ∘C. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 ∘C. Express your answer to three significant figures and include the appropriate units. Part B A solution of water (Kb =0.512 ∘C/m) and glucose boils at 101.56 ∘C. What is the molal concentration of glucose in this solution? Assume that the boiling point of...

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