An aqueous solution containing 15.1 g of an unknown molecular (nonelectrolyte) compound in 108.5 g of water was found to have a freezing point of-2.0°C.

Q: The molality concentraion of a solution can be described as  - the moles of solute per liter of…

A: Molarity is defined as the moles of solute per litre of a solution. Molarity is also known as the…

Q: What is the molality of a solution containing 48.2g of CaO in 392g of solvent?

A: Since we only answer one question at a time, we'll answer the first one. Please resubmit the…

Q: what is the molality of a solution made 100.1 g of NaCl and 440.0 of water?

A: To calculate the molality of the solution , we would use formula of molality.

Q: The freezing point of pure benzene (C₆H₆) is 5.49 °C. The freezing point of a solution made using…

A: Pure benzene (solvent) freezing point = Tp = 5.49 °C Freezing point of Solution = Ts = -13.0 °C Kf…

Q: 1. The process of freezing is shown below for two samples. The smaller circles represent a solute.…

A: option- C is correct as solute addition cause depression in freezing point.

Q: A certain liquid X has a normal freezing point of -7.10 °C and a freezing point depression constant…

A: The normal freezing point of liquid X, Tof =-7.10 °C  The freezing point depression constant, Kf=…

Q: What mass of glycerin (C3H8O3), a nonelectrolyte, must be dissolved in 200.0 g water to give a…

A: Given Data:   Molar  mass of glycerin (C3H8O3)= M =92.09 gm/mol  Mass of water = W1=200.0 g…

Q: Available was 250.00 ml of a 15.67 M H,S0, solution (density 1.7872 g/mL). Assume you pipetted 70.00…

A: Hii there, since there are multiple questions posted. we are answering first question. if you need…

Q: An aqueous solution of molecular compound X freezes at -0.569°C. Calculate the molality of the…

A: Depression in freezing point (∆Tf) :-  When a non volatile solute is added to a pure solvent its…

Q: Calculate the freezing point of a solution with 72.33g of propane C3H8 dissolved in 250mL of water.…

A:

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

A:

Q: Essentially the question is what makes a freezing point greater.

A: Properties of a solution which depends upon the no of solute particles present in it is called…

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: C. What is the (a) molality, (b) freezing point, and (c) boiling point of a solution containing…

A: Molality is an important method to determine the concentration of a solution. It is generally…

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

A:

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: Calculate the freezing point, in degrees Celsius, of a solution c

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

A:

Q: A certain liquid x has a normal freezing point of -9.80 °C and a freezing point depression constant…

A:

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: An aqueous solution containing 17.5 g of an unknown molecular (nonelectrolyte) compound in 100.0 g…

A: Given: Mass of compound = 17.5 g. Mass of water i.e. solvent = 100.0 g = 0.100 Kg…

Q: What are colligative properties? What is osmotic pressure?

A: The question talks about the concept of solutions. a solution is a homogeneous mixture having no…

Q: The density of an aqueous solution containing 25.0 percent of ethanol (C2H5OH) by mass is 0.962…

A: Given : Density of solution = 0.962 g/mL And percent by mass of ethanol = 25.0 %. Assuming 1 Kg i.e…

Q: What is the molality of a solution composed of 3.25 g methanol (CH3OH) and 250 mL of water?

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Q: What mass of glucose should dissolve in11.5kg of water to obtain a solution with a freezing point of…

A:

Q: When a solute is dissolved in a liquid, the vapor pressure is increased because the surface area…

A: The vapour pressure of solution is defined as the pressure exerted by the vapours in the equilibrium…

Q: A solution of propylene glycol (antifreeze) in the car's radiator has a freezing point of -20°c.…

A: Given data contains, Freezing point is -20°C. Freezing point of water is 0.00°C. The change in…

Q: If an aqueous solution is very dilute, will its molality be greater than its polarity, nearly the…

A: If an aqueous solution is very dilute, will its molality be Greater than its polarity, Nearly the…

Q: A certain liquid X has a normal freezing point of 5.90 °C and a freezing point depression constant…

A: Freezing point of solvent is greater than freezing point of solutions

Q: A compound of carbon, hydrogen, and oxygen was burned in oxygen, and 1.000 g of the compound…

A: Given, Mass of compound = 0.1107g. Mass of water = 25.0g = 0.025kg. Freezing point of solution =…

Q: The boiling point of a solution of 250g benzene and 45g solute boils at 90 degrees celcius. What is…

A: Given that : Mass of benzene = 250 g Mass of solute = 45 g They boil at 90°C. We have to determine…

Q: What is the freezing point of an aqueous solution that boilsat 105.0 °C?

A: As the solution is aqueous so get the value of Kb and Kf with respect to water as, Boiling point…

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 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: How many grams of ethylene glycol (C2H6O2) (molar weight 62 g/mol) must be added to 1 kg of water to…

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Q: How many grams of ethylene glycol must be added to 37.8 g of water to give a freezing point of…

A: The depression in freezing point is the colligative property. The formula used for the depression in…

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 molal concentration of a sugar solution that freezes at -0.93°C?

A: Given: The freezing point of the solution=  -0.93°C Cryoscopic constant of water= (Kf)= 1.853 K kg…

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: The boiling point of an aqueous solution is 101.45 Celsius. What is the freezing point?

A: Given as  the boiling point of an aqueous solution is 101.45 Celsius The freezing  point has to be…

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: What molality of N a Cl is required to lower the freezing point of water to -10.0 degrees C? Use…

A: The freezing point depression is observed after the addition of solute particles into a solvent,…

Q: What weight of glycerol, C3H8O3 is needed to mix it with 2000g water to lower its freezing point hy…

A: Given : Mass of water (solvent) = 2000 g Change in temperature = 1°C

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: An aqueous solution containing 17.5 g of an unknown molecular (nonelectrolyte) compound in 100 ml of…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.