A solution containing 10.0 g of an unknown liquid and 90.0 g water has a freezing point of -3.33 °C. Given Kf = 1.86 °C/m. for water, the molar mass of the unknown liquid is?

Q: The freezing point of pure benzene is 5.49 C. The freezing point of a solution made using toluene in…

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Q: A solution contains 20.5 g of sodium chloride dissolved in sufficient water to give a total mass of…

A: Molality is represented by ‘m’ and is defined as the number of moles of solute present in 1 kg of…

Q: 13. What is the molality of a solution when 12 g of NH3 (17.031 g/mol) is dissolved in 250 g water?…

A: Molality (m) : Number of moles of solute (n) present in 1Kg of solvent (W) is called molality (m)…

Q: A solution is prepared by combining 5.03 grams of an unknown non-electrolyte with 323.0 grams of…

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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: . If 10.0 g of NaCl are dissolved in 75.0 mL of water, what will be the freezing point of the…

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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 solution is prepared by combining 5.24 grams of an unknown non-electrolyte with 291.0 grams of…

A:

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

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: A 0.01 molal solution of K3Fe9(CN)6 freezes at -0.062C. What is the apparent degree of dissociation?…

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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: A solution is made using 126.9 mL of ethanol (density 0.7892 g/mL) and 350.0 mL of water (density…

A: Given: The volume of ethanol = 126.9 mL The density of ethanol = 0.7892 g/mL The volume of water =…

Q: A solution contains 22.4 g glucose (C,H12Og) dissolved in 0.500 L of water. What is the molality of…

A: Number of moles of solute is equal to the mass divided by molar mass of solute.

Q: A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 300.0 mL of water (density…

A: Mass of methanol is calculated as,

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: A solution is made using 257.7 mL of methanol (density 0.7920 g/mL) and 300.0 mL of water (density…

A: Given: Volume of methanol = 257.7 mL Density of methanol = 0.7920 g/mL Volume of water = 300.0 mL…

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: What molality (m) will a solution have that was prepared by mixing 220 grams of NaOH in 1200 ml of…

A: Molality (m) of a solution is defined as the number of moles of a solute dissolved in per kilogram…

Q: An aqueous solution is 12.0% by mass ammonia, NH3, and has a density of 0.950 g/mL. The molality of…

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Q: (c) A saturated solution of barium chloride at 30°C contains 150 g water. How much additional barium…

A: Given that   Mase of water = 150g  Initial temperature = 30°C

Q: Find the molarity and molality of NH, if it is in a solution composed of 30.6 g NH, in 81.3 g of…

A: Given information,    Mass of NH3 = 30.6 g    Mass of water = 81.3 g    Density of solution = 0.982…

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: An aqueous solution of ethanol (molar mass = 46.07 g/mol) has a molality of 12.15 m and a density of…

A: Answer:- This question is answered by using the simple cocept of calculation of molarity using the…

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

A:

Q: The normal boiling point of a certain liquid X is 141.40 °C, but when 20. g of glycine (C,H,NO,) are…

A: To calculate molal boiling point elevation constant , we first find moles and than molality.

Q: 2. Sodium nitrate has a lattice energy of -2.48 x 102 kJ/mol, and a heat of hydration of -234…

A: The number of moles of sodium nitrate can be determined as follows: Number of moles of NaNO3  =…

Q: A student dissolves 19. g of methanol (CH,OH) in 425. mL of a solvent with a density of 0.98 g/mL.…

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Q: Calculate the boiling point of a solution containing 3.5 g sugar (molar mass= 342 g) dissolved in…

A: Given data contains, Mass of sugar=3.2 g. Mass of water is 150 g=0.15 kg

Q: a mixture of ethanol and water has a freezing point of -16.0 degrees celsius. what is the molality…

A: We have to determine the molality of the alcohol and what is the weight % of alcohol in the solution…

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

A: molal depression in freezing point    ∆Tf = Kf x m(To - Ts ) = Kf   x  m where  Ts = freezing…

Q: A solution containing 8.0 g of an unknown liquid and 92.0 g water has a freezing point of -2.50 °C.…

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Q: A solution of 1,921 g of nicotine in 48.92 g of water has a freezing point of -0.450 ° C. Determine…

A: Given: The mass of nicotine in the solution = 1.921 g The mass of water = 48.92 g The freezing point…

Q: A solution was prepared by dissolving 12.00g of a non-dissociating solute in 40.00g of pure water.…

A: The depression in freezing point of the solution on addition of a solute can be expressed as…

Q: A solution is made using 256.0 mL of phenol (density 1.070 g/mL) and 400.0 mL of water (density…

A: Molality: it is a concentration term. It may be defined as no. of moles of solute present per…

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: What is a colligative property? Explain why the freezing point of a solution depresses and boiling…

A: Matter exists in different forms.  Each state of matter is characterized by certain physical and…

Q: An aqueous solution of cesium chloride is prepared by dissolving 52.3 g cesium chloride in 60.0g of…

A: Number of moles of cesium chloride = given mass / molar mass = 52.3 g / 168.36 g/mole= 0.31 molMass…

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

A:

Q: A solution is made using 125.4 mL of ethanol (density 0.7892 g/mL) and 350.0 mL of water (density…

A: Mass of ethanol = density of ethanol × Volume = 0.7892 g/ml × 125.4 ml = 98.965 g So, no. of moles…

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: Determine the freezing point of a solution if 400g of NaCl3 was dissolved in 1600g of water. The Kf…

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

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.