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 1 year 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 .

[ncchem 3.2.052A.] Some physical properties of water are shown below. freezing point 0.00°C boiling point 100.00°C...

[ncchem 3.2.052A.] Some physical properties of water are shown below. freezing point 0.00°C boiling point 100.00°C Kf 1.86°C/m Kb 0.512°C/m What is the freezing point of a solution of glucose, a nonelectrolyte, that contains 66.0 g of C6H12O6 dissolved in 373 g of water? Use molar masses with at least as many significant figures as the data given. °C What is the boiling point of the solution? °C

In the interval between the freezing point (ice point) of water and 700.0deg-C, a platinum resistance...

In the interval between the freezing point (ice point) of water and 700.0deg-C, a platinum resistance thermometer is to be used for interpolating temperatures from 0 °C to the melting point of zinc, 692.666 K. The temperature, in Celcius or Centigrade, is given by a formula for the variation of the resistance of the thermometer with temperature: R = R,o(1 + A Tc + B Tc^2). Ro, A, and B are constants determined by measurements at the ice point, the...

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...

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