5.48°C and Kf for benzene is 5.12°C/m. Calculate the molar mass of the unknown com pound. a. 587 g/mol b. 147 g/mol c. 293 g/mol d. 251 g/mol e. 28.7 g/mol

Q: Determine the percent by mass of MgCl2 if 3.3 g of MgCl2 is dissolved in 46.5 g of water.

A: Given, mass of MgCl2 = 3.3 g Mass of Water = 46.5 g Total mass of Solution = mass of water + mass of…

Q: When a 33.8-g sample of an unknown compound is dissolved in 500. g of benzene, the freezing point of…

A: Given: Mass of the unknown compound dissolved = 33.8 g Mass of benzene taken = 500 g The freezing…

Q: Potassium is often mixed with saline in IV drips. You prepare a solution by diluting 250 mL of a 2.6…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A solution is made using 130.0 mL of acetonitrile (density 0.786 g/mL) and 250.0 mL of water…

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Q: What happens to the freezing point of a substance when a nonvolatile solute is dissolved in it? Why?

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Q: A KCI3 solution contains 105.5 g of KCI dissolved in 250.0 g of water at 60 degree C. Is the…

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Q: molecular mass of a substance if 22.5 g dissolved in 250 g of water produces a solution whose…

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Q: The solubility of a substance is 30 g per 100 mL of water at room temperature, 50 g per 100 mL of…

A: Given : solubility of substance at room temperature = 30 g/100 mL water solubility of substance at…

Q: 1. A solution containing 292 g of Mg(NO3), per liter has a density of 1.108 g/mL. The molality of…

A:

Q: What is the freezing point of an aqueous solution that contains 3 moles of the ionic solute CaCl2…

A: Depression in the freezing point is the colligative property in which the freezing point of a…

Q: A 2.28 L aqueous solution of KOH contains 199 g of KOH. The solution has a density of 1.29 g/mL.…

A: Molarity means in 1000 ml solution how many moles solute present. If x mol solute present in 1000ml…

Q: If a solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0…

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

Q: A substance becomes less soluble as the temperature increases. Based on the graph below, which…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A student dissolves 6.4 g of stilbene (C, H,) in 175. mL of a solvent with a density of 1.01 g/mL.…

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Q: solution is made using 194.7 g of hexane (MM = 86.18 g/mol) and 200.0 g of octane (MM = 114.2…

A: The concentration of a solution is very important parameter in chemistry. It is expressed in amny…

Q: A solution is made using 120.9 g of toluene (MM = 92.13 g/mol) and 80.0 g of benzene (MM = 78.11…

A: The ratio of moles of solute to the mass of solvent in kg is known as molality.

Q: Determine the percent by mass of MgCl2 if 3.4 g of MgCl2 is dissolved in 41.6 g of water.

A: Percent by mass: mass of solute/mass of solution*100

Q: (e) Pressure has little effect on the solubility of liquids in liquids. (f) Pressure has a major…

A: Henry's law= which states that the solubility of a gas in a solvent is directly proportional to the…

Q: A solution is prepared by dissolving 78.5 g of NaCl and 889 g water to make a total solution volume…

A: Given data,Mass of NaCl=78.5gMass of water=889g=0.889kgvolume of solution=925mL=0.925L

Q: The solubility of magnesium chloride in water is 54.3 g/100 mL of water at 20 C. If you have a…

A: Amount of magnesium chloride soluble in 100 gm water = 54.3 gm  Amount of magnesium chloride soluble…

Q: A solution is made using 128.3 mL of acetonitrile (density 0.7766 g/mL) and 250.0 mL of water…

A:

Q: A 0.194-g sample of a nonvolatile solid solute dissolves in 9.82 g of cyclohexane. The change in the…

A: The question is based on the concept of solutions. depression is freezing point is a colligative…

Q: A 75.0 grams of MgCl2 is dissolved in 500.0 g of water. Calculate the molality of the solution. a)…

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Q: How is the solubility of solid NaCl in water affected by each of the following changes? a.…

A: Generally, the solubility of solids increase with increase in temperature. External pressure has…

Q: Calculate the freezing point and boiling point of a solution containing 8.10 g of ethylene glycol…

A: Freezing point of pure ethanol = -114.6 °C Boiling point of pure ethanol = 78.4 °C Kf of ethanol = -…

Q: When a 49.0-g sample of an unknown compound is dissolved in 500.g of benzene, the freezing point of…

A: Given,  Mass of unknown sample = 49.0 g Mass of benzene solvent = 500.0 g = 0.5 Kg Freezing point of…

Q: A solution is made using 130.1 mL of acetonitrile (density 0.7766 g/mL) and 250.0 mL of water…

A: Step 1: Calculating the moles of solute( acetonitrile) .  Step 2: Calculating the mass of the…

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: Determine the percent by mass of MgCl2 if 3.1 g of MgCl2 is dissolved in 41.1 g of water.

A: Calculate total mass of solution:

Q: How much water must be added to 36.0 g of SrCl2 to produce a solution that is 35.0 wt% SrCl2?

A:

Q: In lab, scientists often use percentages to describe concentration. When making a solution,…

A: We have to find volume needed to make solution

Q: Determine the volume percent of a solution made by dissolving: (a) 32.9 mL of butanol in enough…

A: The concentration of a substance can be measured in terms of volume by volume percentage. This…

Q: When a 41.1-g sample of an unknown compound is dissolved in 500.g of benzene, the freezing point of…

A: Given the mass of the unknown solute = 41.1 g  mass of solvent, benzene = 500. g * (1 Kg / 1000 g) =…

Q: A sucrose solution is prepared to a final concentration of 0.300 M . Convert this value into terms…

A: Molarity = number of moles / volume in liter

Q: When 13.81 g (about one tablespoon) of table sugar (sucrose, C12 H22O11) is dissolved in 241.9 mL of…

A: Given  Mass of sucrose ( C12H22O11) = 13.81 g Moles of sucrose (solute) = mass of sucrosemolar mass…

Q: What is isotonic solutions hypothetical concentration of solvent and solute?

A: Osmosis is the process of flow of water from low solute concentration towards a region having high…

Q: When a 33.8-g sample of an unknown compound is dissolved in 500. g of benzene, the freezing point of…

A: Given: Mass of unknown compound = 33.8 g Mass of benzene = 500 Freezing point of the solution =…

Q: 2. When 3 g of an unknown solute is dissolved in 50 g of benzene, the resulting solution has a…

A:

Q: A pure solvent has a freezing point of −3.62°C. A solute is added to the solvent and the solution…

A: Molality is a measure of the number of moles of solute present in 1 kg of solvent. Unit of molality…

Q: A Vitamin C packet is added to a glass of water containing 270.0 mL of water. The Vitamin C packet…

A: Given that: Volume of water = 270.0 mL Mass of vitamin C = 1000.0 mg = 1 g Density of water = 1.00…

Q: Given an intravenous solution, dextrose 10% in water, which contains 10.0 g dextrose monohydrate…

A:

Q: An aqueous solution containing 275.9 g of sucrose [C12H22O11] per liter has a density of 1.104 g/ml.…

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

Q: 100 90 NANO 80 70 Cac Pb(NO), 60 50 40 KCI NaCI 30 20 KCIO, 10 Ce,(SO,), 10 20 30 40 50 60 70 80 90…

A: Above question can be easily solved by looking this graph at 10 degree celcius.

Q: Calculate the freezing point of a solution containing 1.25 g of benzene in 100 g of chloroform

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: A. Determination of the Freezing Point of Cyclohexane. N/A 1. Mass of test tube, beaker and…

A:

Q: A solution contains 4.80 g of solute in 11.4 g of solvent. What is the mass percent of the solute in…

A: Mass percentage is one way of representing the concentration of an element in a compound or a…

Q: How does a solution become supersaturated? Dissolve lots of solvent in it.…

A: A solution that contains more quantity of solute than the maximum amount that can be dissolved in it…

Q: Ethylene glycol (EG), CH₂(OH)CH₂(OH), is a common automobile antifreeze. It is water soluble and…

A:

Q: 1. Dilution in a given quantity of solvent. _is a measure of the amount of solute that is dissolved…

A: All the terms mentioned in the question belong to the topic solutions. The solution is formed by…

Q: Determine the molality and molarity of a sodium chloride solution prepared by adding 37.60 g of…

A: A) Molality is defined as the moles of solute present per Kg of solvent  => molality = moles of…

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.