What is the molarity of ethanol in a 90 proof ethanol–water solution? Assume the density of ethanol, C2H5OH, is 0.79 g/cm3 and the density of water is 1.0 g/cm3. Molarity = M

Q: calculate the mass percent of a solution prepared by dissolving 17.2 g of NaCI in 149 g of water

A: The answer to the following question is given as:

Q: Calculate the molarity of a solution in which 360. grams of glucose, C6H12O6, are dissolved in…

A: m = 360 g V =  250 mL        [ 1L = 1000ml]    = 0.250 L  Molar  mass of  C6 H12 O2 =  180.16 g/mol

Q: What is the %v/v of a solution made from 176.1 g of ethylene glycol (density is 1.11 g/mL) in water…

A:

Q: Describe how to prepare each solution from the dry solute and the solvent. a. 125 ml of 0.100 M…

A: (a) In the given question: Volume = 125 ml Molarity = 0.100 M Molar mass of NaNO3 = 85 g/mol…

Q: Question attached

A: Step 1: Calculate the freezing point depression of the solution. Step 2 : Calculate the molal…

Q: A 12 M Solution of hydrochloric acid of volume 6 L needed to be diluted to reduce its molarity to…

A: First find the total volume and then find the volume of water added.

Q: A solution contains 100.0 g water, 10.0 g NaCl, and 15.0 g methanol. What is the mass percent of…

A: Given data: The mass of water = 100 g The mass of NaCl = 10.0 g The mass of methanol = 15.0 g The…

Q: What mass of salt (NaCl) should you add to 1.10 L of water in an ice-cream maker to make a solution…

A: Given the desired solution freezes at - 10.8 oC. => The required depression in freezing point,…

Q: Acetone, C3H6, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL…

A:

Q: An aqueous solution is 6.00 % methanol CH3OH by mass with a density = 0.988 g/mL. What is the…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: An aqueous CaCl2 solution has a vapor pressure of 81.6 mmHg at 50 °C. The vapor pressure of pure…

A: Given information: Vapor pressure of solution = 81.6 mmHg Vapor pressure of pure water = 92.6 mmHg

Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A: Given: Freezing point of pure water = 0.0°C Freezing point of the solution = -8.8°C Mass of water =…

Q: 6. The freezing point of a solution of 1.048 g of an unknown nonelectrolyte dissolved in 36.21 g of…

A:

Q: The term proof is defined as twice the percent by volume of pure ethanol in solution. Thus, a…

A: The proof of ethanol is given = 94 proof Hence it means the % by volume of ethanol = 94 / 2 = 47 %

Q: What is the %v/v of a solution made from 66.1 g of ethylene glycol (density is 1.11 g/mL) in water…

A: Given data,Mass of ethylene glycol=66.1gDensity of ethylene glycol=1.11g/mLTotal volume=500mL

Q: Rubbing alcohol contains 18 g isopropanol (C3H7OH) in 2 liter of aqueous solutions. Calculate the…

A:

Q: What will be the percent composition by mass of a solution made by dissolving 28.4 grams of sodium…

A: Given mass of sodium acetate is 28.4 grams. Volume of water is given as 125 mL.  As the density of…

Q: a) Water is a polar solvent and hexane (C6H14) is a nonpolar solvent. In which solvent is WnQuO2…

A: a) Water is a polar solvent and hexane (C6H14) is a nonpolar solvent. In which solvent is WnQuO2…

Q: What is the mass percent of ethylene glycol (HOCH2CH2OH) in a solution of ethylene glycol in water…

A: In this question, we want to determine the mass Percent of ethylene glycol.  You can see details…

Q: Glycerol, C3H8O3, is a substance used extensively in the manufacture of cosmetics, foodstuffs,…

A: Given, Density of glycerol = 1.2656g/mL. Volume of glycerol = 50.000mL. Volume of solution =…

Q: Automotive antifreeze contains ethylene glycol, C2H6O2, a nonvolatile nonelectrolyte, in water.…

A: 25% by mass solution of ethylene glycol consists of 25 g of ethylene glycol (WA) in 100 g of…

Q: Caffeine (C8H10N4O2) is a stimulant found in coffee and tea. A solution of caffeine in the solvent…

A: The mass of caffeine present in 0.0500m solution is calculated as,

Q: . Suppose two beakers are placed in a small closed containerat 25°C. One contains 400 mL of a…

A: V1 = 400 ml of 0.1 NaCl V2 = 200 ml of 0.25 M of NaCl The volume increases since it is being…

Q: A solution of acetic acid, CH3CO2H, is prepared by dissolving 40.0mL of acetic acid in enough water…

A: Volume % = volume of solute/volume of solution*100

Q: The solubility of Cr(NO3)3 • 9H2O in water at 15°C is 208 g per 100. mL of solution. Is a 1.22 M…

A: Molarity M=no of moles of soluteVolume of solution                   =2084001001000…

Q: Suppose two beakers are placed in a small closed container at 25°C. One contains 400. mL of a 0.100…

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Q: If 100 mL of a 0.15 M Mg(NO3)2(aq) solution has a density of 1.09 g/mL, which of the following…

A: Given, Volume of solution = 100 mL Molarity of Mg(NO3)2 solution = 0.15 M = 0.15 mol/L Density of…

Q: 1) 80mL of NaOH is dissolved in 100mL C2H5OH. How much are the mass percentage, volume percentage,…

A: Solution                       Given that 80ml of NaOH is dissolved in 100ml of C2H5OH Find the…

Q: The density of an aqueous solution that is 13.2% by mass of XY ( molar mass 56.8 g/mol ) is 1.10 g/…

A:

Q: Calculate the molarity of a solution prepared by dissolving 0.429 g of Ba(OH)2 in 250 cm3 of…

A: Given    mass of Ba( OH )2      = 0.429 gram     Volume of solution   = 250 cm3…

Q: A solution of ethylene glycol (C2H6O2) in water is 3.981 molar and has a density of 1.0296 g mL–1 .…

A: Molarity of solution is the number of moles of solute present per liter of solution.Percent, by…

Q: An isopropyl alcohol solution is prepared by dissolving 10.0 mL of pure isopropyl (C3H80) alcohol, a…

A: Given: Volume of isopropyl alcohol = 10.0 mL density of isopropyl alcohol = 0.786 g/mL Volume of…

Q: Glycerol, C3H8O3, is a substance used extensively in themanufacture of cosmetic s, foodstuffs,…

A:

Q: The freezing point of pure benzene is 5.50^o C. A solution is made by dissolving 0.300 g of…

A: The freezing point of a solution can be calculated with the help of the depression in point which…

Q: What is the molality of a solution prepared by dissolving 78.8  g of ethylene glycol, HOCH2CH2OH, in…

A:

Q: Glycerol, C3H03, is a substance used extensively in the manufacture of cosmetics, foodstuffs,…

A: given :-  volume of glycerol = 70.000 mL  density of glycerol = 1.2656 g/mL volume of solution =…

Q: Glycerol, C3H8O3, is a substance used extensively in the manufacture of cosmetics, foodstuff,…

A: Given,

Q: 1 What is the percentage by mass and ppm of the following solutions: a. 30 g of NaCl and 105g of…

A: Given:-     We know that  1PPM means 106 part contains 1part solute.  W/w ℅ means part of solute in…

Q: Calculate the molarity of the following solutions : 25 mol of solute in 75.0mL of solution 75 mol…

A: NOTE - As per our company guideline we can answer only 3 sub parts. kindly repost the question…

Q: Calculate the mass percent by volume of 39.6 g of glucose (C₆H₁₂O₆, MM = 180.2 g/mol) in 325 mL of…

A: Given mass of glucose = 39.6 g Volume if solution = 325 ml

Q: What is the %v/v of a solution made from 141.1 g of ethylene glycol (density is 1.11 g/mL) in water…

A: % V/V = ? Mass of ethylene glycol = 141.1 g Density of ethylene glycol = 1.11 g/ml Total final…

Q: 1. The density of a solution made by dissolving 3g of a substance in water is 2.15g/mL. The…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: A 12.5 % by mass solution of ethanol (C2H5OH) in water has a density of 1.225 g/mL at 20°C. What is…

A: The mass percent of the solution is = 12.5 % The density of the solution is = 1.225 g/mL The molar…

Q: True or False? Molarity of a solution is independent of the temperatuture of the solution. (In…

A: Given statement : Molarity of a solution is independent of the temperatuture of the solution. (In…

Q: What is the freezing point of a solution containing 407 g ethylene glycol in 2,098 g water. Molar…

A: Freezing point depression = Kf x molality Molality = Number of moles of solute/Mass of solvent in Kg…