What is the freezing point of a ethanol solution if that same solution boils at 79.5 ℃? The normal boiling point and freezing point of pure ethanol (C2H5OH) are 78.29 ℃ and -114.2 ℃, respectively. For ethanol, Kb = 1.23 ℃/m and Kf = 1.99 ℃/m

Q: During cold weather, calcium chloride is added to concrete to increase the speed at which the…

A: Here 100 ml samle of aqueous solution of calcium chloride is diluted to make volume 345 ml and the…

Q: A student prepares a 1.1 mM aqueous solution of acetic acid (CH₂CO₂H). Calculate the fraction of…

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Q: Calculate the molarity of each of the following solutions. Round each of your answers to 3…

A: The objective of the question is to calculate the molarity of each of the given solutions. Molarity…

Q: A chemist prepares a solution of copper(II) sulfate CuSO4 by measuring out 7.84g of copper(II)…

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Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

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Q: Some cooks will tell you that they salt the water used to boil pasta because adding table salt…

A: Given : Elevation in boiling point of solution required = 5 oC And volume of water = 2 L = 2000 mL…

Q: Constants I Perm 1.00 g KCl in 95.0 mL of solution Express your answer with the appropriate units.…

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Q: You are working in an aseptic unit making TPN bags. One of your adult patients requires 20mmol of…

A: Given the stock solution= 5% sodium chloride.  Let the mass of the solution be 100g. Then the mass…

Q: 1. During the set-up of a distillation or a boiling point apparatus, the position of the bulb of the…

A: Solution - The process of distillation totally depends on temperature of liquids . That’s why…

Q: The units of ku are mL (g−1·h−1) but the unit of ke is hour−1. Why?

A: The unit of ku is mL (g−1·h−1) but the unit of ke is hour-1 . Give the reason why there are…

Q: What is the freezing point of 0.0225 m aqueous calcium chloride, CaCl2? Use the formula for the salt…

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Q: A student dissolves 17 g of methanol (CH3OH) in 125. mL of a solvent with a density of 0.99 g/mL.…

A: The objective of the question is to understand the concept of density and how it is affected when a…

Q: A chemist prepares a solution of silver(I) perchlorate AgClO4 by measuring out 470 mol of silver(I)…

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Q: An aqueous solution at 25 °C has a H,0 concentration of 4.9 x 10 'M. Calculate the OH concentration.…

A: The autoionization of water is given below.

Q: A chemist prepares a solution of potassium dichromate (K,Cr, O,) by measuring out 63.7 µumol of…

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Q: The ocean is a heterogeneous fluid with different concentrations of zinc at different depths.…

A: Conceptual interpretation - As we know that ocean is the heterogeneous fluid with different…

Q: A 25.0 mL aqueous stock solution of 3.7 M NaF is diluted to a final concentration of 1.8 M. What is…

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Q: Calculate the volume in liters of a 2.27 x 10^-5 M zinc oxalate solution that contains 75.0 g of…

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Q: A student dissolved 230.8 grams of cesium chloride in 100.0 grams of 90 °C water.  The student then…

A: 43.8 g of substance has separated out as solid. The mass of cesium chloride present in dissolved…

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A: mmoles of standard Solution = ( volume • concentration )  Note : 1mM = 10^-3 M  mmoles of standard…

Q: nist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 66.8 µmol of copper(II)…

A: Molarity is defined as number of mole of substance divide by volume of solution in liter

Q: A common antifreeze for car radiators is ethylene glycol, CH2(OH)CH2(OH). How many milliliters of…

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Q: A chemist mixes 8.0 g of carbon tetrachloride with 25. g of thiophene and 85. g of…

A: Mass of carbon tetrachloride  = 8 gMass of thiophene                  = 25 gMass of…

Q: Calculate the volume in milliliters of a 2.59M nickel(II) chloride solution that contains 175. g of…

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Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 223. µmol of iron(II)…

A: From given data Number of moles, n = 223 µmol Volume of solution, V = 200 mL = 0.2 L   As,…

Q: A chemist prepares a solution of barium chlorate (Ba(ClO,)) by measuring out 2.0 g of barium…

A: W know that Molarity = number of moles of solute / volume of the solution in L Given that Mass of…

Q: Answer the following question: A student wants to make a 1.600 M aqueous solution of barium sulfate,…

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Q: What is the mass of (9.00*10^0) number of water molecules ? Report your answer to 3 significant…

A: Given:  Number of water molecules = 9.00 × 100 molecules = 9 molecules  To calculate : Mass of water…

Q: The solubility in hexane of organic compound O is measured and found to be 92.8 // at 30. °C.…

A: Solubility of organic compound O in hexane = 92.8 g/LMass of organic compound O = 31.0 gVolume of…

Q: A certain liquid X has a normal freezing point of 1.00 °C and a freezing point depression constant K…

A: According to the depression in freezing point expression,∆Tf = i × Kf × mWhere,∆Tf = Tfsolvent -…

Q: A chemist prepares a solution of aluminum sulfate (Al, (So,)) by measuring out 191. g of aluminum…

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Q: In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average…

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Q: The solubility in water of ionic compound X is measured and found to be 77.3 g L water that would…

A: Given: Solubility compound X = 77.3 g/L at 25 oC.Mass of X in solution = 50.0 g

Q: A chemist adds 75.0 mL of a 3.20 g/dL potassium dichromate (K,Cr,0, solution to a flask. Calculate…

A: Concentration of potassium dichromate(K2Cr2O7) = 3.20g/dL Volume of the solution = 75.0ml = 75.0ml ×…

Q: What is the boiling point of 0.0585 m aqueous

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Q: A chemistry student needs 15.0 g of heptane for an experiment. He has available 0.50 kg of a 44.3%…

A: Step 1: SolutionGiven, mass of solution available = 0.50 kg = 0.50 kg × ( 1000 g / 1 kg ) = 500…

Q: In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average…

A: Please find your solution below : Carbon monoxide is a poisonous, colourless, tasteless and…

Q: A solution is made by mixing 5.40 g of toluene, CHg(1), with 954. mL of chloroform, CHCI3(1).…

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