How much CaCl, should be used in order to decrease the freezing point of 14 kg water in an automobile radiator to -30 °C? For water K, = 1.86 K kg mol O a. 6.45 kg O b. 8.35 kg O. 9.55 kg O d. 3.39 kg O e. 5.42 kg

Q: for benzene, c6h6, the freezing point constant, Kp is 5.12 K kg mol^-1 and its normal freezing point…

A: Equation for the depression in freezing point is given by,  ΔTf  = i ×  Kf  × m    i = van't hoff…

Q: A solution was made by adding 800 g of ethanol, C2H5OH, to 8,000 g of water. How much would this…

A: The formula for calculating Freezing point depression is, ∆Tf=Kf.m.i where, Kf is the cryoscopic…

Q: A solution is made by dissolving 46.8 g of glucose (M. wt = 180) in 117 g of water (M. Wt 18). The…

A: Answer: option a: 0.96 is the mole fraction of water.

Q: A solution containing 20.0 g of an unknown liquid and 110.0 g water has a freezing point of -1.32…

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Q: What would be the theoretical freezing point of a solution made by dissolving 13.57 g of NiCl 2 in…

A: Given:  Mass of NiCl2 = 13.57 g  Molar mass of NiCl2 = 129.5994 g/mol  Mass of water = 500 gm  Kf =…

Q: The boiling point of water is 100.00 °C at 1 atmosphere. A student dissolves 10.01 grams of zinc…

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Q: 18. A solution of 20.0 g of which hydrated salt dissolved in 200 g of water will have the lowest…

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Q: 2. A solution consists of 8.00 g of Na,SO, added to 92.0 g of water. Calculate the following: a. The…

A: #2.(a): Vapor pressure of pure solvent, water, Posolvent = 26.7 torr Mass of the solute, Na2SO4…

Q: Question attached

A: The atmosphere consists of 78.1% N2 and 20.9% O2 by volume Henry's law constant for O2 is 1.3 x 10-3…

Q: What is the total vapor pressure of a solution containing 35.8 g benzene (C6H6, molar mass = 78.11…

A: Given-> Weight of benzene = 35.8 gm Weight of toluene = 56.7 gm T = 25°C = 25 + 273 = 298 K…

Q: A solution contains 2.45 g of a compound and 155 g water.   The freezing point of the pure solvent…

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Q: The lattice energy of an ionic compound (AX) is 666 kJ/mol and its heat C solution is -6.3 kJ/mol.…

A: The enthalpy change when one mole of an ionic compound dissociates into its ions in gaseous state is…

Q: a) Arrange the following aqueous solutions from lowest to highest boiling point. Justify your…

A: a) Given : 0.0185 m CH3OH solution 0.0125 m KCl solution  And 0.0105 m Ca(NO3)2 solution.

Q: A 1.0 M solution would freeze at which temperature? Kf = 1.86 degrees/mole for water. A)  (-)1.86oC…

A: Given that the concentration of the solution = 1.0 M = 1moles of solute in 1L solutions. Kf = 1.86…

Q: ty ol X2 yuS in water is 0.620 g/L when a pressure of X2 over the solution is 13.2 atm.. What is the…

A: Applying concept of henry law  C=kHP

Q: The heat solution of KCl is 17.2 kj/mol and the lattice energy of KCl (s) is 701.2 KJ/Mol. Calculate…

A: The enthalpy change during the formation of one mole of ionic crystal from one mole of gaseous…

Q: 15. A solution contains 28% 2 punto phosphoric acid by mass. This means that A 1L of this solution…

A: Mass percent is the mass of the element or a solute divided by the mass of the compound or solute.…

Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of calcium iodide (293.9…

A: The freezing point depression formula is given as ∆Tf = i Kf m∆Tf =Change in freezing point…

Q: How many grams of ethylene glycol (molar mass 62.07 g/mol) must be added to 1500.0 g of water to…

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Q: The solubility of nitrogen in water is 8.21x 10-4 mol/L at 0°C when the N2 pressure above water is…

A: Given, C= kP,  To solve k, k=CP

Q: Calculate the mass of O, that is dissolved in the water inside a 100 L home aquarium at 297 K?…

A: Given data,Volume of water=100LAtmospheric pressure=1.01barKH=1.33×10-3molL-1bar-1Molar mass of…

Q: Calculate the freezing point of 0.1 molality of MgCl, assuming complete dissociation, Kf = 1.86…

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Q: 1. Find the vapor pressure of a solution containing 35.0g calcium chloride (CaCl2) in 750.0g water.…

A: Vapour pressure of solutions is equal to pressure of pure components multiplied by mole fraction

Q: Nicotinamide is a water-soluble nonelectrolyte vitamin important in metabolism. Addition of 3.88 g…

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Q: The Henry's law constant for the solubility of nitrogen in water is 6.4 x 1o-4 M/atm at 25°C. At…

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Q: s of CH:OH (MM = 32.04 g/mol) would need t water in order to lower the freezing point of w water is…

A: Given,  Molar mass of CH3OH =32.04 g mol-1Mass of water =330.1g =0.330 Kg∆T = Depression in freezing…

Q: Calculate the solubility of N, in water when the partial pressure of nitrogen above water is 1.15…

A: Given  partial presure = 1.15 atm Henry law 's constant  = 1.04 ×10-3 mole/L-atm Calculation  of…

Q: Calculate the vapor pressure at 85.0°C of a solution prepared by dissolving 0.200 mol of liquid…

A: To calculate the vapour pressure of solution, Raoult's law has been used. PSolution =…

Q: How many moles of sugar was added to 82.90 g of ethanol to change the freezing point of ethanol by…

A: Given : Mass of ethanol = 82.90g

Q: How many grams of water should be added to prepare a 2% solution by mass with 22 - 16.5 g of MgCl2…

A: Mass percentage of a solution: The mass of solute in gram present in 100 g of a solution is known as…

Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of ammonium chloride (53.50…

A: Given  Mass of water   = 211 gram                           =  0.211 Kg  Molar mass of Ammonium…

Q: Calculate the freezing point (oC) of a solution of 15.46 g of acetone (CH3COCH3, MM = 58.08 g/mol)…

A: Answer: The freezing point of the solution is - 116 °C. Option f. -116 is the correct answer.

Q: Which ionic solid is most soluble in water at 0°C? A. sugar (Ci2H2On) B. KNO. C. NANO, D. NaBr E.…

A: The most soluble ionic solid in water at 0°C has to be given.

Q: The freezing points and boiling points of the solution which contains 25.0 g NaCl in 129 mL of water…

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Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of ammonium iodide (145.0…

A:

Q: Anthraquinone contains 80.8 % carbon, 3.8 % hydrogen and 15.4 %oxygen. The freezing point of camphor…

A: Empirical formula is way of representing a chemical compound which have element present in the…

Q: The partial pressure of O, in your lungs varies from 25 mm Hg to 40. mm Hg. What concentration of O,…

A: The solubility and the pressure of a gas is related by Henry’s Law. According to Henry’s Law,    the…

Q: What is the solubility of O2(g) in water at 25°C if the atmospheric pressure is 741 mmHg? The…

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Q: What is the total vapor pressure of a solution containing 35.8 g benzene (C,H₁, molar mass = 78.11…

A:

Q: A certain liquid x has a normal freezing point of 1.30 °C and a freezing point depression constant…

A: The depression in the freezing point is calculated by the formula: ∆Tf=mKf Where m is the molality…

Q: 171g of CaCly is dissolved in 750 mL of water (d = 100 g/mL) and is placed in the freezer at -2…

A: To solve this problem first we will calculate the molality of the Solution then according to this we…

Q: How many moles of sugar was added to 82.90 g of ethanol to change the freezing point of ethanol by…

A:

Q: The freezing point of water is 0.00°C at 1 atmosphere.  How many grams of chromium(III) nitrate…

A: given,Chromium (III) nitrate Cr(NO2)3→Cr3++3NO3-⇒i(vant Hoff factor)=4

Q: The solubility of X2 gas in water is 0.620 g/L when a preşsure of X2 over the solution is 15.2 atm..…

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Q: Determine the partial pressure of oxygen necessary to form an aqueous solution that is 6.5 × 10-4 M…

A: Henry’s law determines the gas’s solubility into one particular solution. The enhancement in the…

Q: In an aqueous solution of sulfuric acid, the concentration is 7.87 mol% of acid. The density of the…

A: Given that : Concentration in % of acid = 7.87 mol% Density of the solution = 1.2205 g mL-1 The…

Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of chromium(III) acetate…

A: Given  Molar mass of Chromium ( III ) acetate =  229.2 gram/mole  or 229.2 gram .mol-1 Mass of water…

Q: The mole fraction of urea (MW = 60.0 g/mol) in a solution prepared by dissolving 45 g of urea in 50…

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Q: What is the solubility of O2(g) in water at 25°C if the atmospheric pressure is 841 mmHg? The…

A: P=841mmHg   =841760=1.107 atm KH (Henry's law constant) = 1.3×10-3 mol/L-atm Henry's law shows that…