A solution containing 8.0 g of an unknown liquid and 92.0 g water has a freezing point of -2.50 °C. Given Kf = 1.86 °C/m for water, the molar mass (g/mol) of the unknown liquid is:

Q: 1 A certain liquid X has a normal freezing point of -7.40 °C and a freezing point depression…

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Q: A student dissolves 11. g of glucose (C6H1206) in 175. mL of a solvent with a density of 0.94 g/mL.…

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Q: The density of a particular solvent is 5.15g/L with a volume of 3981cm^3. If you add 0.00518kg of…

A: Molality of a solution is defined as the number of moles of solute per kilogram of solvent. The SI…

Q: A student dissolves 19. g of glucose (CH,20,) in 250. mL of a solvent with a density of 0.84 g/mL.…

A: Mass of glucose = 19 g Volume of solvent = 250 mL Density of solvent = 0.84 g/mL Molarity =?…

Q: A student dissolves 12. g of sucrose (C12H0) in 150. mL of a solvent with a density of 1.06 g/ml.…

A: Weight of sucrose=12g Solvent volume=150mL Density=1.06g/mL

Q: A solution is made using 218.8 mL of methanol (density 0.7920 g/mL) and 300.0 mL of water (density…

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Q: Calculate the boiling point of a solution containing 18.7 g of potassium phosphate in 150.0 g of…

A: Given Values mass of potassium phosphate = 18.7g Molar mass = 212.27g/mol Moles = 18.7g/212.27g/mol=…

Q: solution whose freezing point is -0.930°C is the boiling point of a solution made by g 31 g of NaCl…

A: The number of moles of a substance is determined as the mass of that substance upon its molar mass.…

Q: 14. What is the molecular mass of a substance if 22.5 g dissolved in 250 g of water produces a…

A: We are required to find the molar mass of the substance  Mass of substance taken=22.5 gm

Q: A student dissolves 6.8 g of resveratrol (C1H,,03) in 175. mL of a solvent with a density of 1.04…

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Q: A student dissolves 20. g of glucose (C,H,,0,) in 100. mL of a solvent with a density of 0.96 g/mL.…

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Q: enthalpy of solution for ammonium perchlorate is 33.47 KJ/Mol. How many grams must be added to 225.0…

A: Given that -  Enthalpy of Solution for Ammonium perchlorate = 33.47 kJ/mol = 33470 J/mol  Volume of…

Q: 8. A solution containing 1.00 g of an unknown nonelectrolyte liquid and 9.00 g water has a freezing…

A: Tf° = -3.33°C ∆Tf = 0-(-3.33) = 3.33 °C Kf = 1.86°C/m  Mass of water = 9.0 gm  Mass of electrolyte =…

Q: Determine the freezing and boiling points of a solution prepared by dissolving 82.02 grams of…

A: To solve this problem first we have to calculate the molality of Solution then the depression in…

Q: An aqueous solution is 36.0% by mass hydrochloric acid, HCl, and has a density of 1.18 g/mL. The…

A: 36% by mass HCl means 36 g of HCl present in 100g of solution  mass of solution = mass of solute +…

Q: Q3: A- Calculate the Molality of a solution containing 5.6 g of Sodium hydroxide (NaOH) in 250 g of…

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Q: The freezing point of water is 0.00°C at 1 atmosphere. If 13.73 grams of barium bromide, (297.1…

A: molality is defined as number of moles of solute in solution of 1kg of solvent. let solve the…

Q: A student dissolves 7.4 g of glucose (CH,0,) in 150. mL of a solvent with a density of 1.11 g/mL.…

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Q: The freezing point of ethanol CH3CH2OH is -117.30°C at 1 atmosphere. A nonvolatile, nonelectrolyte…

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Q: What molality of N a Cl is required to lower the freezing point of water to -14.6 degrees C? Use…

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Q: A student dissolves 11. g of aniline (C,H,NH,) in 250. mL of a solvent with a density of 1.12 g/mL.…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution and…

Q: The freezing point of CuSO4 solution was determined to be -0.97c. Determine the moles of CuSO4, if…

A: We know that molal depression constant of water = Kf = 1.86 K kg mol-1 Given that, the freezing…

Q: A solution is made by dissolving 56.0 g CaCl, in 150.0 g of water. What is the molality (m) of this…

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Q: 12 g of KCl is dissolved in 300g of water. What is the molality of KCl? (MW of KCl: 74.5 g/mol)

A: Given:  Mass of KCl = 12 gm  Mol. Wt. of KCl = 74.5 gm/mole  Moles of KCl = 12/74.5 = 0.1611 moles…

Q: The freezing point of water is 0.00°C at 1 atmosphere. If 10.82 grams of magnesium sulfate, (120.4…

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: [References] What volume of ethylene glycol (C2HO2), a nonelectolyte, must be added to 12.0 L water…

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Q: 48- A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water, the density of resulting…

A: Molality is defined as numbers of moles of solute divided by mass of solvent in kg .

Q: What molality of N a Cl is required to lower the freezing point of water to -12.4 degrees C? Use…

A: Given: Freezing point of water with NaCl solution = -12.4 oC And Kf of water = 1.853 oC/m.

Q: A solution is prepared at 22°C and its concentration is expressed in three different units: percent…

A: We will write all terms and effect of temperature on them and answer the question.

Q: A certain substance X has a normal freezing point of 5.2 °C and a molal freezing point depression…

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Q: How many grams of ethylene glycol, an automobile antifreeze, dissolved in 3.55 kg water is needed to…

A: Given data, Weight of water (W) = 3.55 kg = 3550 g. Freezing point of water = -22.0 °C. Kf  for…

Q: Given the following information, calculate the missing values for multiple different solutions of…

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Q: A water solution containing an unknown quantity of a non electrolyte solute has a freezing point of…

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Q: What is the molality of a solution containing 0.587 mol of sulfuric acid in 500g of water?…

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Q: Molality (m) Calculate the molality of a solution that contains 27.5 g barium chloride (BaCl2) in…

A: Given, mass of barium chloride =27.5 gramvolume of water =100 mL we are asked to calculate the…

Q: A student dissolves 14. g of stilbene (C,H,,) in 450. mL of a solvent with a density of 1.09 g/mL.…

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Q: Potassium perchlorate (KClO4) has a lattice energy of -599 kJ>mol and a heat of hydration of -548…

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Q: (Q73) A solution vapor pressure (in 55.30 torr. You s

A: Here we have to find the vapor pressure of solution containing 16.9 g MgCl2 and 815.7 g water. The…

Q: . What is the molecular mass of a substance if 22.5 g dissolved in 250 g of water produces a…

A: The formula for freezing point depression when a solute is added to a solution is : ∆Tf=Kf×m∆Tf→ The…

Q: A solution is made using 130.0 mL of acetonitrile (density 0.7766 g/mL) and 250.0 mL of water…

A: density of acetonitrile=0.7766g/mldensity=mass of acetonitrilevol. of…

Q: A solution is made using 121.8 mL of acetonitrile (density 0.7766 g/mL) and 250.0 mL of water…

A: From the Formula of Molarity we can solve this problem.

Q: A student dissolves 17. g of sucrose (C,H„01) in 250. mL of a solvent with a density of 1.04 g/mL.…

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Q: Calculate the boiling point and freezing point of a solution containing 478 g of ethylene glycol in…

A: Given data: The mass of ethylene glycol (solute)= 478 g. The mass of water (solvent) = 3202 g =…

Q: A solution is prepared by dissolving 11.622 g sulfuric acid, H2SO4, (Molar Mass = 98.07848 ) in…

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Q: When 3.87 g of a nonelectrolyte solute is dissolved in water to make 645 mL of solution at 29 °C,…

A: Given-> Weight of non electrolyte = 3.87 gm Volume of solution= 645 ml = 0.645 L (1L = 1000 ml)…

Q: Determine the vapor pressure of a solution at 25 degrees Celsius that contains 76.6 g of glucose in…

A: The molar mass of water is 18 g/mol and the molar mass of glucose is 180 g/mol.  The 250 mL of water…

Q: b. When 4.35 grams of ethylene glycol (C,H,O2) is dissolved in 100g of water, the resulting solution…

A: Given,  Mass of ethylene glycol (solute) = 4.35 g  Mass of water ( solvent )             = 100 g =…

Q: A student dissolves 10. g of phenol (C,H;OH) in 175. mL of a solvent with a density of 1.03 g/mL.…

A: 10g phenol is dissolved  The solvent amount is 175 ml The density of the solvent is 1.03g/ml

Q: A 2.039 mass % aqueous solution of potassium hydroxide has a density of 1.05 g/mL. Calculate the…

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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.