The normal freezing point of a certain liquid X is 4.60°C, but when 40.g of iron(III) nitrate (FeNO33) are dissolved in 350.g of X the solution freezes at 3.7°C instead. Use this information to calculate the molal freezing point depression constant Kf of X. Be sure your answer is rounded to the correct number of significiant digits.

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Q: The normal freezing point of ethanol (CH3CH2OH) is -117.300 ºC.  In a laboratory experiment,…

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Q: K,= 2.57 °C kg mol for a certain subs 20 colution freezes at 5.7 °C. Calculate the freezing point of…

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Q: The normal freezing point of a certain liquid X is -9.60 °C, but when 22.3 g of alanine (C3H,NO₂)…

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Q: The normal freezing point of a certain liquid X is -4.4 °C, but when 12.06 g of urea freezes at -8.3…

A: The normal freezing point of a certain liquid X is  -4.4o CWhen 12.06 g of urea is dissolved in 350…

Q: The normal freezing point of a certain liquid X is -0.70 °C, but when 19. g of sodium chloride…

A: Given ,Normal freezing point of certain liquid, X Mass of NaCI = 19. gMass of X = 850. gObjective…

Q: When 14.3 g of a certain molecular compound X are dissolved in  85.0 g of benzene C6H6, the…

A: The equation for depression in freezing point is given below.

Q: The normal boiling point of a certain liquid X is 133.8 °C, but when 65. g of urea ((NH,),CO) are…

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Q: A certain liquid X has a normal boiling point of 114.40 °C and a boiling point elevation constant K…

A: The boiling point of the pure liquid = 114.40 0C. The boiling point of the solution = 115.1 0C.…

Q: A solution is prepared by combining 4.82 grams of an unknown non-electrolyte with 305.0 grams of…

A: Given that: Mass of solute = 4.82 g Mass of chloroform = 305.0 g = 0.305 kg Freezing point of the…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Molar Mass of napthalene (C10H8) = 128 g/mol Molar mass of pyrene (C16H10) = 202 g/mol Mass of…

Q: When  238.   mg  of a certain molecular compound X are dissolved in  90.0   g  of benzonitrile…

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Q: - 1 The molal freezing point depression constant K₁=2.02 °C-kg-mol for a certain substance X. When…

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Q: The normal freezing point of a certain liquid X is 3.90°C, but when 12. g of potassium bromide (KBr)…

A: Upon addition of some external material the freezing point and boiling point of the compound changes…

Q: You have a flask weighing 121.214 g. To this flask, you added 25.00 mL KCl(aq) solution. You weigh…

A: molality is a method of expressing concentration of the solution. it is defined as number of moles…

Q: When 116. mg of a certain molecular compound X are dissolved in 60.0 g of cyclohexane C6H12, the…

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Q: The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory…

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Q: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. What is the vapor pressure of…

A: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. We have to calculate the…

Q: A certain liquid X' has a normal freezing point of -3.40 °C and a freezing point depression constant…

A: The question is based on the concept of depression in freezing point.  on adding solute to a…

Q: The molal freezing point depression constant K,=4.05 °C - kg • mol for a certain substance X. When…

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Q: freezing

A: As we know that,  ∆Tf = Kf × m Where, m = molality of the solution.  From the above equation, we get…

Q: A certain liquid X has a normal freezing point of 3.30°C and a freezing point depression constant…

A: We know that, depression in freezing point is given by,                                       ΔTf =…

Q: When 173. mg of a certain molecular compound X are dissolved in 100 g of cyclohexane (C6H12), the…

A: Answer:For a non-electrolyte and non-volatile solute dissolved in a solvent, depression in freezing…

Q: A certain liquid X has a normal freezing point of -4.00 °C and a freezing point depression constant…

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Q: 1) The boiling point of chloroform, CHCl3, is 61.700 °C at 1 atmosphere. Kb(chloroform) = 3.67 °C/m…

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Q: The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.140 g of an unknown…

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Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: The boiling point of an aqueous solution is 101.18 ∘C. What is the freezing point?

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Q: When 571. mg of a certain molecular compound X are dissolved in 60.0 g of benzene (CH), the freezing…

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Q: A student dissolves 18. g of biphenyl (C₁2H₁0) in 100. mL of a solvent with a density of 1.04 g/mL.…

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Q: The normal freezing point of a certain liquid x is -6.20 °C, but when 36. g of iron(III) chloride…

A: We will calculate the molal freezing point depression constant Kf. Given: The normal freezing point…

Q: A certain liquid X has a normal freezing point of −6.30°C and a freezing point depression constant…

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Q: The molal freezing point depression constant =Kf·7.96°C·kgmol−1 for a certain substance X. When…

A: Answer: We will calculate the depression in freezing point using following formula:…

Q: Calculate the freezing point and boiling point for 0.43 molmol ethylene glycol and 0.17 mol KBrmol…

A: Boiling point =374.8K (Upto one decimal place) Freezing point= -6.5K (upto one decimal place)

Q: The normal freezing point of a certain liquid X is 0.10 °C, but when 18. g of potassium bromide…

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Q: The boiling point of chloroform, CHCl3, is 61.700 °C at 1 atmosphere. Kb(chloroform) = 3.67 °C/m In…

A: A numerical problem based on colligative properties which is to be accomplished.

Q: 1-A sample of pure t-butyl alcohol weighing 6.22 g was found to have a freezing point of 24.7 °C.…

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Q: The normal freezing point of a certain liquid X is -9.10 °C, but when 8.7 g of potassium bromide…

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Q: When 5.71g of naphthalene is added to 152g of benzene the solution freezes at 3.98 degrees Celsius.…

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Q: A certain liquid X has a normal freezing point of -6.90 °C and a freezing point depression constant…

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Q: 123.2 g of non-volatile ethylene glycol (62.07 g mol ) is added to 304 g of water at room…

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Q: A certain molecular compound M has a solubility in acetonitrile of 12.6 at 10. °C. Calculate the…

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Q: When 169.g of alanine (C3H7NO2) are dissolved in 1000. g of a certain mystery liquid X, the freezing…

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Q: The normal boiling point of a certain liquid X is 140.50 °C, but when 32.3 g of alanine (C,H,NO,)…

A: given mass of alanine = 32.3 g boiling point of solution = 141.7°C boiling point of pure solvent =…

Q: The freezing point of ethanol, CH3CH₂OH, is -117.300 °C at 1 atmosphere. K(ethanol) = 1.99 °C/m In a…

A: Given:Mass of solute = 10.78 gMass of solvent ethanol = 294.9 gThe solution began to freeze at…

Q: The normal freezing point of a certain liquid X is 0.60°C, but when 0.14 kg of barium hydroxide…

A: Given : Mass of barium hydroxide, Ba(OH)2 i.e solute = 0.14 Kg = 140 g         (since 1 Kg = 1000 g)…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.