How many grams of NaCl (molar mass = 58.44 g/mol) needs to added to 0.500 kg of water to create a solution with a molality of 0.500 mol/kg H2O?

Q: e the molality of a solution containing 14.3 g of NaCl in 42.2 g of water.

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Q: How many grams of MgCl2 are needed to make 700.0 mL of a 1.4 M solution? How many grams of NaBr…

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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: (a) Differentiate between molarity and molality for a solution. How does a change in temperature…

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Q: calculate mass percent of (Na3PO4) if 64.2g of (Na3PO4) is dissolved in 364.2 grams of water?

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Q: What is the molality of a solution containing 36.5g of hydrochloric acid in 157g of water? 5.4 m…

A: Consider the given information is as follows; Mass of hydrochloric acid (solute) = 36.5 g Mass of…

Q: Calculate the boiling point of a solution containing 18.7 g of potassium phosphate in 150.0 g of…

A: Given Values mass of potassium phosphate = 18.7g Molar mass = 212.27g/mol Moles = 18.7g/212.27g/mol=…

Q: Which of the following aqueous solutions would give rise to a greater osmotic pressure? a)  18.00 g…

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Q: What is the molality of a solution containing 70.0 g of HNO3 in 0.400 kg of water?

A: Molality is defined as the number of moles of solute in a solution dissolved per1 kg or 1000 g of…

Q: What is the molality of a solution consisting of 4.28 mL of carbon tetrachloride (CCI4; d = 1.59…

A: QUANTITATIVE UNITS: In chemistry, the entities which explain the concentration of a solution in…

Q: A solution contains 3.5 moles of glucose dissolved in .45 liters of water. What is the vapor…

A: Given moles of glucose = 3.5 moles    volume of water = 0.45 l  Moles of water = 0.45 ltr22.4…

Q: How many grams of potassium chloride must be added to 346 g of water in order to prepare a 0.114 m…

A: Answer : Molality (m):   The number of moles of solute dissolved per 1000 gram (kg) of a solvent .…

Q: an aqueous solution that is 25.0% H2SO4 by mass has a density of 1 the molarity and molality of this…

A: Given,  25% by mass, 100 g solution contains 25 g H2SO4.  Mass of solvent = 75 g = 0.075 kg Moles of…

Q: What mass of NaCl is dissolved in 100.g of water in a 0.050 molal solution?

A: Molality of given NaCl solution is 0.050 molal. It implies that 0.050 moles of NaCl is present in…

Q: A glucose solution contains 55.8 g of glucose (C6H12O6) in 455 g of water. Determine the freezing…

A: Given, mass of glucose = 55.8 g  Mass of water (solvent) = 455 g Density of water = 1.0 g/mol The…

Q: Determine the molal concentration

A: Molal concentration is the ratio of number of moles of solute to the mass of solvent (in kg)

Q: 2. A commercial bleach solution contains 3.62 mass percent NaOCI in water. Calculate the molality of…

A: The molality is the term used to define the concentration of the solution.In order to find the…

Q: 3. A solution is prepared by dissolving 26.43 g of ammonium sulfate in enough water to make 225.0 mL…

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

Q: A CaCl2 solution at 24°C has an osmotic pressure of 14 atm and a density of 1.106 g/mL. What is the…

A: Freezing point of CaCl2 solution at given osmotic pressure and temperature has to be calculated

Q: A solution which contains 49.6 g of an unknown molecular compound in 395 g of water freezes at…

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Q: 7. What is the freezing point and boiling point of a solution that contains 19.0 g of glucose (molar…

A: Given : mass of glucose = 19.0 g              Mass of water = 200 g To calculate freezing point we…

Q: A 1.25 m solution is made with calcium chloride. How many grams of CaCl2 do you have in 400g of…

A: Molality of  a solution is defined as, moles of solute present per kg of solvent. molality=…

Q: Calculate the amount of water (in grams) that must be added to 20.6g of MgCl2 in the perception of a…

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Q: A 15% milk solution is prepared by dissolving g of milk in 0.5L of water.

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Q: Calculate the molality of a solution containing 5.81 g of NaCl (58.44 g/mol) in 51.9 g of water.

A: Given:Mass of sodium chloride= 5.81 gMolar mass of sodium chloride= 58.44 g/molMass of water= 51.9 g

Q: The figure shows two identical volumetric flasks containingthe same solution at two temperatures.(a)…

A: (a) The equation for molarity is given below. Since, liquid volumes change with temperature.…

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

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Q: A solution is prepared by dissolving 5.88 g of an unknown nonelectrolyte in enough water to make…

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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: 2.25 g of glucose is dissolved in 240 grams of water. What is the molality of this solution? (Molar…

A: The question is based on the concept of solutions. Molality is one of the way of expressing…

Q: how many grams of glucose are needed to prepare 455 ml of a 1.6 (m/v) glucose solution

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Q: percent by mass

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Q: If 70 grams of NH4CI is dissolved in 100 grams of water at 70°C is the solution saturated,…

A: saturated solution=maximum amount of solute that will dissolve at particular temperature,if any more…

Q: a solution is prepared by dissolving 5.00 g of an unknown molecular solid in water to make 1.00 L of…

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Q: A solution contains 22.5 g of methanol, CH3OH, dissolved in sufficient water to give a total mass of…

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Q: 2.25 g of glucose is dissolved in 240 grams of water. What is the molality of this solution? (Molar…

A: Molality is given by moles of solute dissolved per kg of solvent.

Q: If 500. g of water is added to a 75 g of a 2.5 molality NaCl solution, what is the mass percent of…

A: Given:Mass of water is 500 g.Mass of NaCl is 75 g.Molality of NaCl is 2.5

Q: How many grams of barium nitride are needed to make a 4molal solution if 2.3kg of water is used?

A: Given, Molality of barium nitride = 4m Volume of water = 2.3

Q: Determine the vapor pressure of a solution at 25 degrees Celsius that contains 76.6 g of glucose in…

A: The molar mass of water is 18 g/mol and the molar mass of glucose is 180 g/mol.  The 250 mL of water…

Q: A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250. g of water freezes at -2.34°C.…

A: Given that = Mass of ascorbic acid = 55.0g Mass of water = 250 g Freezing point = -2.34°C Kf of…

Q: Urea, (NH2 )2 CO, is dissolved in 250.0 g of water. The solution freezes at – - 0.081°C. How many…

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Q: Determine the vapor pressure of a solution at 35°C that contains 134.0 g of glucose (C6H1206) in…

A: Given values are -> Weight of glucose = 134.0gm Weight of Water = 400.0gm Vapour pressure of pure…

Q: Calculate the mass of water, in grams, needed to prepare a 0.365 molal solution of sodium nitrate…

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Q: How many grams of water are needed to create a solution with a molality of 0.750 mol/Kg H2O if 10.0…

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Q: Calculate the molality of a solution containing 33.9 g of NaCl in 171.5 g of water.

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Q: WHEN 36G OF A NONVOLATILE, MOLECULAR SUBSTANCE IS DISSOLVED IN 100G OF WATER, THE SOLUTION BEGINS TO…

A: Given information: Mass of non-volatile = 36 g Mass of water = 100 g Freezing point of solution =…

Q: How many grams of sodium chloride are contained within a 35.0 gram sample of a 3.00 molal aqueous…

A: Given mass of sample = 35 g molality = 3 molal

Q: Calculate the mass of water, in grams, needed to prepare a 0.345 molal solution of sodium nitrate…

A: Since molality is defined as  Molality  = moles of solute / Mass of solution in Kg  Since mass of…