atmosphere. Kb(chloroform) = 3.67 °C/m In a laboratory experiment, students synthesized a new compound and found that when 13.21 grams of the compound were dissolved in 288.5 grams of chloroform, the solution began to boil at 62.283 °C. The compound was also found to be nonvolatile and a non-electrolyte.

Q: Calculate the freezing point for a solution containing 55 grams of sucrose, C12H22O11, dissolved in…

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Q: Normal saline solution that is used to dissolve drugs for intravenous use is 0.92% (m/v) NaCl in…

A: Given data : Volume of normal saline = 35 mL % m/v = 0.92 % The given concentration = 0.92% (m/v)…

Q: Prepare a solution of NaCl by accurately weighing approximately 1.45g of NaCl into a 100 mL beaker /…

A: Molality (m)=Moles of soluteMass of solvent in kg mol/kg Mass of NaCl added=1.45gMolar mass of…

Q: Normal saline is a mixture of NaCl in sterile water. Its concentration is 0.900% (g/mL) and mimics…

A: Molarity and molality are concentration terms which tells about the amount of solute present in the…

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

A:

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

A:

Q: A solution prepared by dissolving 18 g sucrose (CH1206) in 90 g water. Calculate the boiling point…

A: Given that: Mass of Sucrose = 18g Mass of water = 90g Kb for water = 0.51°C.kg/mol Molar mass of…

Q: The freezing point of an aqueous solution containing 35 g of an nonelectrolyte in 150 mL water is…

A:

Q: 5.57 grams of urea were added to 57.13 mL of water at an initial temperature of 18.09ºC. After the…

A: Interpretation - To determine the total mass of solution when 5.57 grams of urea were added to 57.13…

Q: To make sweetened ice tea, a student must add sugar to the tea and water mixture. Which one of the…

A: We know that, the solubility of the substance depends on two factor: i) Surface area of Solute:  The…

Q: 100 90 80 NaNO 70 60 CaCl 50 Pb(NO O 40 KCI NaC 30 20 KCIO 10 Ce,(SO 10 20 30 40 50 60 70 80 90 100…

A: a) Given that,  Amount of KCl added in 100 g water at 20°C = 50 g Solubility of KCl in 100 g at 20°C…

Q: What is the molality of an aqueous solution that is 10.0% ethanol, C2H5OH, by mass? Select one: a.…

A:

Q: Calculate the freezing point of a solution  1.75 g  benzene (C6H6) in 200 g  of chloroform (CHCl3).

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Q: What is the molality of a solution made by dissolving 34.9 grams of CoCl 2 in 790 grams of water?…

A: Given: Mass of CoCl2 dissolved = 34.9 g. And mass of water i.e. solvent = 790 g = 0.790 Kg…

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.…

A:

Q: Calculate the freezing point of a glass of water of volume 250cm3 sweetened with 7.5g of sucrose

A: A question based on mole concept that is to be accomplished.

Q: The molar mass of glucose (C6H1206) is 180 g/mol. Which of the following procedures should you carry…

A:

Q: How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator…

A: According to the equation for depression in freezing point  △Tf = Kf × wGMW×Wkg where w = Wt of…

Q: The following information are given for aqueous solutions of solid Y: - If solid Y is dissolved in…

A: Given solubility of Y at 25oC = 30g Y/ 100 g H2O           solubility of Y at 15oC = 40g Y/ 100 g…

Q: What is the molality of a solution containing 100 grams of glucose (C6H12O6, molar mass = 180.2…

A:

Q: A Mixture Contains 1.5 Liters Oxalic Acid H2C204 2H2O (p=1.653 g/mL) and 2- gallon Water. Determine:…

A: The mixture contains 1.5 L oxalic acid in 2-gallon water. 2-gallon water=2×3.78541 L=7.57082 L

Q: Magnesium chloride is often used to melt ice on sidewalks. Considering that the solubility of…

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

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Q: 1. What will be the change in freezing point temperature (in °C) of barium hydroxide when added to…

A: Given, 1. The change in freezing point temperature (in °C) of barium hydroxide when added to 500…

Q: 1) The boiling point of chloroform, CHCl3, is 61.700 °C at 1 atmosphere. Kb(chloroform) = 3.67 °C/m…

A:

Q: When acetic acid is poured on the solid, bubbles are formed. It looks frothy. Solid sodium…

A: The inferences given helps us to find the product formed during the given reaction.

Q: A solution contains 4.80 g of glucose (C6H12O6), in 90.0 g of water. The molality of the solution is…

A:

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: The solubility of potassium nitrate is 155 g per 100 g of water at 75°C and 38.0 g at 25°C. What…

A:

Q: 4 What is the freezing point of a solution that contains 64.3 g of sucrose in 200 g of water?…

A: mass of the sucrose=64.3g molar mass of sucrose=342.3 g/mole Number of moles of sucrose=64.3/342.3…

Q: student adds 6.00 g of a solid to 30.0 mL of water. The solid has a molar mass of 72.0 g/mol. What…

A: MW of solid is given, 72 g/mol Moles=672=0.0833 mol Volume of solution = 30 mL = 0.03 L

Q: Calculate the freezing temperature of a solution where 144 grams of C6H12O6 were dissolved in 1500 g…

A: The substances of solid and liquid states are at a particular temperature and at atmospheric…

Q: What is the boiling point of a solution that contains 1.00 kg of water and each of the following…

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

Q: student combines 0.19 g of Mg metal with HCl and gets a final V of 0.25 L which completely reacts…

A: The solution is as follows:

Q: Vitamin C packet is added to a glass of water containing 770.0 mL of water. The Vitamin C packet…

A: Mass of vitamin C = 1000 mg = 1gm Volume of water = 770 ml  Density of water = 1.00 g/ml Weight of…

Q: What is the freezing point of a solution prepared by dissolving 14.270 g calcium nitrate in 108.800…

A:

Q: The normal temperature range of the liquid phase of pure water is 0°C to 100°C. Which of the…

A: Since depression in freezing point is given by  depression in freezing point = i X Kf X m  where i =…

Q: An aqueous zinc bromide solution (ZnBr2) boils at 100.250 °C.  What is the molality of this…

A: Given  The Boiling point of Aqueous solution ZnBr2  = 100.250 ℃  Kb  of water   = 0.512 ℃/m…

Q: Sodium chloride is dissolved in water as given in the choices. Which solution is the most…

A: Percentage weight/ volume It is expressed as the number of grams of solute dissolve in 100 mL of…

Q: What is the Normality of a 25 mL solution of Hydrochloric acid, that neutralizes 20mL of a 0.50 N…

A:

Q: A solid consists of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 g…

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Q: Thirty milliliters of ferrous ammonium sulfate solution contain 1.176 grams of pure…

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Q: A solution contains 68.4 g of sucrose (C12H22O11) dissolved in 250 g of water. What is the molality…

A: Given, Mass of sucrose = 68.4 gram Moles of sucrose = Given MassMolar MassMolar mass = 342.3…

Q: 1a. Medical saline typically consists of 4.50 g of NaCl in 500.0 mL of solution. What is the…

A: Given: Amount of NaCl =4.50 g Volume of Solution = 500.0 mL To determine i) Molarity of Solution ii)…

Q: What is the freezing point of a ethanol solution if that same solution boils at 79.5 ℃? The normal…

A: Freezing point depression and boiling point elevation are colligative properties. Freezing point…

Q: A solution is made by dissolving 6.60 grams of MgCl2 in 380.0 mL of water. What is the freezing…

A: To find freezing point of a solution.

Q: student mixes 20.0 g of a salt in 100.0 g of water at 20°C and obtains a homogeneous solution.…

A: Option d. KNO3 because it is unsaturated.

Q: The active ingredient in many commercial antifreezes is ethylene glycol (C2H6O2). If you wish to…

A:

Q: How much KBr could dissolve in 50 g of H2O at 70ºC?       Which solute is LEAST soluble in water…

A: From the graph solubility of KBr at 70°C in 100g of water=90 g

Q: At 18.5 deg C, the solubility of calcium nitrate, Ca(NO2)2, is 43.0 g per 100 g water. At this…

A: Given: At 18.5 oC, the solubility of Ca(NO2)2 = 43.0 g/100 g water = 0.430 g/g water. Mass of…