A certain substance X has a normal freezing point of -3.1 °C and a molal freezing point depression constant 1 K,=7.46 °C kg mol '. A solution is prepared by dissolving some urea (NH,),CO) r CO) in 750. g of X. This solution freezes a -7.1 °C. Calculate the mass of urea that was dissolved. Round your answer to 2 significant digits. ado Oxto ?

Q: Aglucose solution contains 83.8 g of glucose (C&H12O6) in 473 g of water. Determine the freezing…

A: We are given, mass of glucose =83.8 g mass of water =473 g Kf=1.86°C/m Kb=0.512 °C/m freezing point…

Q: A certain substance X has a normal boiling point of 105.4 °C and a molal boiling point elevation…

A: The elevation in boiling point of a solution is given by  Tb =Tb-T0 = Tb = the boiling point of the…

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Q: The boiling point of pure ethanol (C₂H₅OH, MM = 46.07 g/mol) is 78.4 °C. A solution is made using…

A: Given,  Boiling point of pure ethanol = T0b = 78.4 °C  Mass of solvent, ethanol = 100.0 g  Mass of…

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Q: A student prepared a sugar solution containing 1.463 g of sugar (C12H22On) in 25.00 mL of water, and…

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Q: A certain liquid X has a normal freezing point of −7.30°C and a freezing point depression constant…

A: δTf = i x Kf x m----(1) where  δTf = To - Ts  To = freezing point of pure solvent =  −7.30°C Ts…

Q: You make a solution using a solid solute (total volume 100mL). The molar mass of the solute is 110…

A: To calculate the molarity of the solution, we need to know how many moles of the solute are…

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 certain liquid X has a normal boiling point of 141.20 °C and a boiling point elevation constant K…

A: Given :-  Mass of Zinc chloride, ZnCl2 = 0.12 kg = 120 g  Mass of Liquid X = 800. g = 0.8 kg  Kb for…

Q: The solubility of CaF, in water at 25 °C is measured to be 0.017 Use this information to calculate…

A:

Q: A certain liquid X has a normal boiling point of 129.30°C and a boiling point elevation constant…

A: We are here given, normal boiling point of liquid X=129.3°C boiling point of solution (solution of X…

Q: 3. When a mass of 337 mg of an unknown compound was dissolved in 750mL of water, the solution's…

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Q: Which of the two cooling curves, left or right, represents the cooling of a pure solvent and which…

A: A question based on properties of liquid that is to be accomplished.

Q: Part A Determine the required concentration (in percent by mass) for an aqueous ethylene glycol…

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Q: Calculate the mass percent of a NaCl solution in which 189 g of NaCl is dissolved in 4.69 L of water…

A: Given that, Mass of NaCl to be dissolve in water m1  = 189 g Volume of NaCl solution in water m2 =…

Q: The boiling point of pure ethanol (C₂H5OH, MM = 46.07 g/mol) is 78.4 °C. A solution is made using…

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Q: Calculate the volume in milliliters of a 0.16/molL potassium dichromate solution that contains…

A: Given: Molarity of potassium dichromate solution = 0.16 mol/L Mass of potassium dichromate solution…

Q: The normal boiling point of a certain liquid X is 106.80°C, but when 125.g of potassium bromide…

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Q: certain substance X has a normal boiling point of 102.5°C and a molal boiling point elevation…

A: Given -> Normal boiling point= 102.5°C  Molal boiling point elevation constant…

Q: The boiling point of pure ethanol (C₂H₅OH, MM = 46.07 g/mol) is 78.4 °C. A solution is made using…

A: To calculate the elevated boiling point of glucose and ethanol solution.

Q: What is the osmotic pressure in torr of a 0.0178 M glucose solution at body temperature (37 °C)?…

A: Given:  Concentration of glucose solution = 0.0178 M  Temperature = 37 °C = 310 K

Q: Calculate the mass of solute required to make a sodium chloride solution containing 1.70 x 102 g of…

A: Mass of Water (Solvent) = W1 = = 170 g = 0.170 kg Melting point = Freezing point of Solution = T =…

Q: Urea, (NH2 )2 CO, is dissolved in 250.0 g of water. The solution freezes at –0.085°C. How many grams…

A: Since the solvent is water with normal freezing point of 0 °C Hence depression in freezing point =…

Q: Ethylene glycol CH2(OH)CH2(OH) is a common automobile antifreeze. Calculate the freezing point and…

A: Given that: Mass of ethylene glycol = 343 g Mass of water = 1055 g = 1.055 kg Kb of water = 0.52…

Q: How much table salt should be added to 300 g water to lower its freezing point to -2.00°C? Follow…

A: Given, Mass of water = 300 g = 0.3 Kg Freezing point of solution (Tf(solution)) = -2.00 °C Amount…

Q: What is the freezing point of 0.208 m urea in water? Use 0.00 °C as the freezing point of water. Be…

A: To solve this problem we have to calculate the freezing point of the given solution of water.

Q: The boiling point of pure ethanol (C₂H₅OH, MM = 46.07 g/mol) is 78.4 °C. A solution is made using…

A:

Q: You dissolve 1.89 mol of glucose into a total volume of 5.1 L.  What is the molarity of glucose in…

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Q: A student wants to lower the freezing point of 100 mL of water.  They add 5.00 grams of NaCl to teh…

A: ∆Tf = i x Kf x m Where, Tf = freezing point depression;  Kf = freezing point depression constant; m…

Q: A solution is prepared by mixing 10.0 g of hydrochloric acid (HCl; molar mass = 36.5 g/mol) and 90.0…

A: (1) Given data : Mass of hydrochloric acid = 10 gms Volume of water = 90 mL    Density of water = 1…

Q: A solution contains 6. 30 °C. Use the solubility graph to determine if the K₂Cr₂07 solution is…

A: Saturated solution is the solution in which no more solute can be dissolved at the same temperature.…

Q: A certain liquid X has a normal freezing point of 0.80°C and a freezing point depression constant…

A: For colligative properties  Depression in freezing point,  ∆T= imKf  Where,  i - vant hoff factor  m…

Q: Potassium perchlorate (KCIO4) has a lattice energy of -599 kJ/mol and a heat of hydration of -548…

A: Answer: When a salt is dissolved in water energy is absorbed during the break down of salt into its…

Q: . A solutia A certain liquid X has a normal freezing point of -4.20 °C and a freezing point…

A: First calculate the change in freezing point for the solution and use it to calculate the mass of…

Q: A certain liquid x has a normal boiling point of 119.60 °C and a boiling point elevation constant…

A:

Q: Urea (NH2)2CO, is dissolved in 105.0 g of water. The solution freezes at -0.605°C. How many grams of…

A: Given,

Q: Calculate the boiling point of a 3.60 m aqueous sucrose solution. Express your answer in degrees…

A: The boking point of the solution can be determined by calculating it's molarity .

Q: The solubility of KNO3 is 155 g per 100.0 g of water at 75 °C and 38.0 g at 25 °C. What mass of KNO3…

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Q: What is the molality, m, of the solution?

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Q: A mass of CaCl2, when dissolved in 100.00 g of water, gives an expected freezing point of -5.0…

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Q: A certain liquid has a normal freezing point reezing point dep ssion some sodium chloride (NaCl) in…

A: Given : data  Tip: apply equation of depression in freezing point

Q: When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of…

A:

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.