Concentrated hydrochloric acid contains 1.15 mol HCl dissolved in 3.54 mol H2O. What is the mole fraction of HCl in concentrated hydrochloric acid? What is the molal concentration of HCl? m

Q: A bottle of wine contains 11.8% ethanol by volume. The density of ethanol (C₂H, OH) is 0.789 g/cm…

A: a bottle of wine contains 11.8 % ethanol by volumevolume of wine bottle = 100 ml = 100 cm3volume of…

Q: A solution was made by adding 800 g of ethanol, C2H5OH, to 8,000 g of water. How much would this…

A: The formula for calculating Freezing point depression is, ∆Tf=Kf.m.i where, Kf is the cryoscopic…

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 1 molar solution of hcl in benzene has a freezing point of 0.4 celsius. Is HCl an electrolyte in…

A: Given that : We have to determine whether HCl is an electrolyte or not in benzene if 1M of HCl in…

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: Calculate the molality of a solution prepared by dissolving 13.7 g of sodium hydroxide (NaOH) in…

A: The molality of a solution is calculated by the formula, m=msMs×mS×1000......(1) Where, ms is the…

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A: The number of moles of a weak acid can be calculated as: Moles = given mass/ molar mass…

Q: What is the freezing point of a solution consisting of 0.255 moles of methanol added to 150 g of…

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Q: A solution is made by dissolving 85.0 g ethyl alcohol, C2H5OH, in 225.20 g H2O.      Calculate the…

A: The question is based on the concept of concentration. mass percentage is a method of expressing…

Q: A solution of lead sulfate (PbSO4) contains 0.425 g of lead sulfate in 100.0 g of water.  What is…

A: Given that : Mass of PbSO4 = 0.425 g Mass of water = 100.0g Total mass of the solution = 0.425g +…

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: 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: Compound XY is an ionic compound that dissociates as it dissolves in water. The lattice energy of XY…

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Q: A small amount of methanol (CH;OH) is dissolved in a large amount of water. Imagine separating this…

A: a) The increasing order of enthalpy from going from stages A to D will be, A < D < B < C,…

Q: A solution of vinegar is 0.763 M acetic acid, HC2H3O2. The density of the vinegar is 1.004 g/mL.…

A: Given data,  molarity of acetic acid, HC2H3O2 = 0.763 M  Density of vinegar = 1.004 g/mL