mass

Q: An ethylene glycol solution contains 21.2 g of ethylene glycol (C,H,O2) in 85.4 mL of water.…

A: The freezing point of a solution is determined by: ∆Tf = Kfm The given information is: Mass of…

Q: 29 g of KOH is dissolved in 250. mL of water. What is the mass percent of KOH in this solution?…

A: Hence you posted multiple choice questions, I will answer the first three sub questions. (1) mass of…

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: Calculate the mass percent of a NaClNaCl solution in which 108 gg of NaClNaCl is dissolved in 4.72…

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Q: Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its…

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Q: A 100.0-mL aqueous sodium chloride solution is 13.5% NaCl bymass and has a density of 1.12 g>mL.…

A: The given data contains, Volume = 100 ml. density = 1.12 g/ml. i = 1.8 mass by % = 13.5

Q: A student dissolves 6.6g of phenol C6H5OH in 375.mL of a solvent with a density of 0.82/gmL…

A: The number of moles for a given compound or a molecule refers to the ratio of its mass to the…

Q: A 50.0-ml solution is initially 1.55% MgCl, by mass and has á density of 1.05 g/mL. What is the…

A: Density of the solution is equal to the mass of solution divided by its volume. Write the expression…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Molar Mass of napthalene (C10H8) = 128 g/mol Molar mass of pyrene (C16H10) = 202 g/mol Mass of…

Q: A 50.0-mL solution is initially 1.55% MgCl2 by mass and has a density of 1.05 g>mL. What is the…

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Q: A solution is made by dissolving 25.0 g of sodium chloride, in 265 g of water. Calculate the…

A: As you have posted multiple questions, we will answer the first question for you. Kindly repost the…

Q: A student dissolves 6.1 g of styrene (C3H3) in 225. mL of a solvent with a density of 0.87 g/mL. The…

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Q: 1. A chemical technician assessed the composition of a liter of seawater and found to contain…

A: Here we are required to find the Molarity and molality of the solution

Q: An aqueous solution containing 35.6 gg  of an unknown molecular (non-electrolyte) compound in 150.1…

A: Given, mass of the compound = 35.6 g mass of water = 150.1 g = 0.1501 kg Freezing point of the…

Q: Potassium hydroxide (KOH) has a lattice energy of −789.0 kJ/mol−789.0 kJ/mol and a heat of hydration…

A: Volume of solution could be heated can be calculated from the energy required for heating and the…

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: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: A student dissolves 10. g of aniline (C6H5NH₂) in 425. mL of a solvent with a density of 0.98 g/mL.…

A: Given : mass of aniline = 10 g  Tip : molarity = moles / volume of solution (L)      Molality =…

Q: A 12.63 g sample contains only ethylene glycol (C2H6O2) and propylene glycol (C3H8O2). When the…

A: given:  mass of water = 104 g mass of sample = 12.63 g freezing point of solution = -3.40oC we know…

Q: How many grams of BaCl2 should be added to 300 g water so that the freezing point of the solution is…

A: Molality is the property of the solution and it is defined as  number of moles of solute  present in…

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: Lithium iodide has a lattice energy of −7.3 × 102(kJ/mol) and a heat of hydration of −793 kJ/mol.…

A: Given that the lattice energy of lithium iodide is -7.3×102 k J/mol and a heat of hydration of -793…

Q: What volume of ethylene glycol (C2H5 O2), a nonelectolyte, must be added to 18.0L water to produce…

A: Given that:        Volume of solvent (H2O) = 18.0 L         density of ethylene Glycol = 1.11g/cm3…

Q: A student dissolves 1.9 g of styrene (C,H,) in 150. mL of a solvent with a density of 1.02 g/mL. The…

A: Given that,  Weight of styrene  = 1.9 g Molar mass of styrene = 104.15 g/mol Moles of styrene n =…

Q: A carbohydrate contains 40.91% C, 4.58% H, and 54.51% O by mass. A solution of 11.2 g of this…

A: Given:Boiling point of ethanol solution = 78.50oC.Boiling point of ethanol = 78.29oC. The…

Q: If 20.1408 g of KNO, (MM = 101.10 g/mol) is dissolved in 15.06 mL of water at 66.8°C (Density(H,O)…

A: Answer: Solubility of a compound in water at a particular temperature is the maximum amount of…

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

A: Decrease in the freezing point of solution by addition of a nonvolatile solute is known as…

Q: A 3.40-g sample of a mixture of naphthalene (C10H8) and pyrene (C16H10) is dissolved in 35.0 g…

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Q: composition by mass of the solid

A: Record the given info Mass of Solid = 6.50 g Mass of Water = 50.0 g Freezing point of the solution =…

Q: The density of the solution is 1.73 x 103 g/L. If the NaCl in an aqueous solution is 6.27 molar,…

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Q: A student dissolves 14. g of sucrose (C,H,O,) in 450. mL of a solvent with a density of 0.85 g/mL.…

A: Given-> Weight of sucrose = 14 gm Volume = 450 ml = 0.450 L (1L = 1000 ml) Density = 0.85 g/ml =…

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…

A: Given : Mass of mixture sample i.e solute = 6.50 g Mass of water i.e solvent = 50.0 g = 0.050 Kg…

Q: A student dissolves 4.8 g of ammonia (NH,) in 350. mL of a solvent with a density of 1.01 g/mL. The…

A: Given,  Mass of NH3 = 4.8 g  Molar mass of NH3 = 17 g/mol  Volume of the solvent = 350 ml = 0.35 L…

Q: A student dissolves 14. g of aniline (C,H,NH,) in 200. mL of a solvent with a density of 0.90 g/mL.…

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Q: Calculate the molar mass of the unknown compound. (Use Kf=1.86∘C/m) An aqueous solution containing…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.