A solutioncontains6.75 x 10-2g of acompound in8.35 g ofethanol. Themolality ofthe solutionis3.90 x 10- m-Calculate themolecularweight of thecompound.Molecularweight =amu

Molality (m) of a solution is defined as the number of moles of solute per kg of the solvent. Thus,…

Answered: A solution contains 6.75 x 10-2 g of a…

A solution contains 6.75 x 10-2 g of a compound in 8.35 g of ethanol. The molality of the solution is 3.90 x 10- . Calculate the molecular weight of the compound. Molecular weight = amu

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Determine the molal concentration of a sugar solution in water that has a freezing point of –2.1°C.…

A: Given information, Freezing point = –2.1°C Value of Kf = 1.86°C/m for water

Q: Why do some physical properties of solutions depend only on the concentration of the solute and not…

A: The dilute solutions have the physical properties based on number of particles called colligative…

Q: When a 5.64 g sample of a non-electrolyte was dissolved in 40.0 g of water, the freezing point of…

A: Molality of the solution can be calculated as follows:

Q: A solution contains 6.45 × 10-2 g of a compound in 8.21 g of ethanol. The molality of the solution…

A: Since moles = mass / molecular weight hence moles of compound = 6.45 X 10-2 / molecular weight of…

Q: When 2.36 g of a nonelectrolyte solute is dissolved in water to make 985 mL of solution at 27 °C,…

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

Q: What mass of H2O is needed to dissolve 5.39 g Na2CrO4 to produce a solution having a molality of…

A: Given:The mass of Na2CrO4 is 5.39 g. Molality is 0.389 m. The density of the solution is 1 g/mL.…

Q: What mass of NaNO3 should be dissolved in 45 mL of water so that the resulting solution freezes to…

Q: Calculate the molality of NH3 (MM = 17.03 g/mol) in household ammonia, which is an 8.00% solution by…

Q: An aqueous solution containing 36.8 g of an unknown molecular (non-electrolyte) compound in 143.2 g…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: A 0.598 M aqueous solution of acetone ( acetone mw= 58.0 amu) is prepared by dissolving acetone in…

A: Given,Molarity of acetone = 0.598M.Volume of solution = 75.0mL = 0.075L.The moles of acetone can be…

Q: Hydrochloric acid is usually obtained as a 36% hydrochloric acid solution. If it is 13.42 M, what is…

Q: A solution was prepared by dissolving 125.0 g of KCl in 295 g of water. Calculate the molality of…

A: Molality: The molality of the solution is defined by the mole of solute present in one kilogram of…

Q: Calculate the molality of a solution formed by adding 3.80 g NH4Cl to 13.7 g of water.

A: Molality of solution= 5.18 m

Q: Calculate the molality of a solution that contains 70g naphthalene C10H8 in 100 g of water. The…

A: Given :- Mass of naphthalene = 70 g Mass of water = 100 g To calculate :- Molality of solution

Q: A solution is prepared by combining 5.24 grams of an unknown non-electrolyte with 291.0 grams of…

Q: You have a solution which is 44.4% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

Q: Calculate the molality of a solution that contains 81.2 g of naphthalene, C10H8 , in 500. mL of…

A: given, the mass of naphthalene = 81.2g the volume of carbon tetrachloride = 500. mL the density of…

Q: Calculate the molality of a solution

A: Molality of solution is the ratio of number of moles of solute to the mass of solvent in kilogram.

Q: A solution was prepared by dissolving 12.0 g of glucose (180 g/mol) in 150. mL solution. What is the…

Q: What is the molality of a solution

A: Molality = number of moles of solute/mass of solvent in kilogram Number of moles = mass/molar mass

Q: Which of the following is the solution concentration expressed in terms of molality? 10 g of solute…

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough 1. water to…

A: Number of moles of glucose (solute) is calculated as follows,

Q: Molality and Molarity of a solution of a liquid (Mol Weight=50) in an aqueous solution is 9 and 10…

A: Relation between molality (m) and Molarity (M) is given by (1/m) = (d/M) - (M.wt/1000) d = density…

Q: A 1.50 M solution of CaCl 2 (MM=109.9 g/mol)in water has a density of 1.11 g/mL. What is the…

A: Molality is defined as number of moles of solute present in 1 kg of solvent.

Q: What is the molality of 2.5 g NaCl dissolved in 20.0 kg of water?

A: The given values for the preparation of NaCl solution is: weight of NaCl=2.5 gamount of water…

Q: The density of an aqueous solution containing 15.0 percent ethanol (C₂H5OH) by mass is 0.979- your…

A: Given : Mass percentage of ethanol = 15.0 ℅ Density of solution = 0.979 g/ml

Q: the density of a 3.539 M HNO3 aqueous solution is 1.150 g x mL-1 at 20 Degrees C. What is the molar…

A: Given Molarity = 3.539 M Density = 1.15 g/ml

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: Find the molarity and molality of NH, if it is in a solution composed of 30.6 g NH, in 81.3 g of…

A: Given information, Mass of NH3 = 30.6 g Mass of water = 81.3 g Density of solution = 0.982…

Q: the

Q: What is the molality of a 4.90M NANO3 solution. The density of the solution is 1.22 g/mL Molar mass…

A: Given : molarity of NaNO3 = 4.90 M And density of solution = 1.22 g/mL Assuming 1 L of solution i.e…

Q: What is the molar concentration of the solution? concentration: ----m How many moles of solute…

Q: A solution of KCl in water has Xkcl= .0700. What is the molality?

A: A KCl solution consists of KCl salt as the solute and water as the solvent. Mole fraction of any…

Q: A solution contains 92.2g of methanol, CH3OH, dissolved in sufficient water to give a mass of…

A: The molality of a solution is calculated by the formula: Molality m=mol of solutemass of solvent kg

Q: What mass of H2O (in grams) is needed to dissolve 6.03 g Li3PO4 to produce a solution having a…

Q: Calculate the molality of a solution formed by adding 3.159 g of methanol (CH3OH) to 100.00 mL of…

A: Dear student since you have posted multiple questions we will solve only first question for you if…

Q: 1. Find the mass percent of CaCl2 (110.98 g/mol) in a solution whose molarity is 1.45 M and whose…

A: given that,Molarity = 1.45 M = 1.45 mol/ 1L density = 1.12 g/mLvolume of the solution = 1L = 1000mL…

Q: Ethyl propanoate is an organic molecule that smells like pineapple and has a molar mass of 102.132…

A: The molality of a solution is the number of moles of solute dissolved per kg of the solvent.

Q: The solubility of nitrogen in water at 0ºC and 1 atm pressure is 23.54 mL of N2/L.>At what…

A: The objective of the question is to find the pressure required to increase the solubility of…

Q: Calculate the molality of a solution formed by adding 2.10 g NH4Cl to 13.8g of water.

Q: An aqueous solution of 1.00 M ammonia (NH3) has a density of 0.900 g/mL. What is its concentration…

A: Aqueous 1 M ammonia solution has a density of 0.9 g/ml. To calculate molality, moles of solute and…

Q: Your pure water boils at 100.00 C. You add some sugar into it and now it boils at 101.20C. What is…

A: Given, Boiling point of pure water, Tb° = 100.00 °C Boiling point of solution, Tb = 101.20 °C Kb…

Q: If the freezing point of the solution was observed to be -8.6 °C, and the normal freezing point of…

A: Given: Freezing point of solution = -8.6 oC The freezing point of pure solvent i.e. cyclohexane=…

Q: What is the molality of a 32.5% HCIO4 solution? The density of this solution is 1.67 g/mL. 5.40 m…

Q: molality of

Q: A bottle of wine contains 12.5% ethanol by volume. The density of ethanol (C₂H5OH) is 0.789 g/cm³.…

A: The volume percent of the ethanol is 12.5%.The density of ethanol is .The volume of the solution is…

Question

A solution
contains
6.75 x 10-2
g of a
compound in
8.35 g of
ethanol. The
molality of
the solution
is
3.90 x 10- m-
Calculate the
molecular
weight of the
compound.
Molecular
weight =
amu

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

24
Calculate the molality of a solution formed by adding 2.60 g NHCl to 19.1 g of water. molality: m NH₂Cl
Calculate the molality of a solution formed by adding 2.50 g NH4Cl to 16.7 g of water.
A student dissolves 6.7 g of biphenyl (C12H10) in 425. mL of a solvent with a density of 1.05 g/mL. The student notices that the volume of the solvent does not change when the biphenyl dissolves in it. Calculate the molarity and molality of the student's solution. Round both of your answers to 2 significant digits. molarity Ox10 olo Ar molality 미
A certain sample of concentrated hydrochloric acid is 30.8 % HCI. Calculate the molality of this solution. molality = i m
If 40 g of potassium nitrate, KNO3, are dissolved in 500 g of water, what will be the molality of this solution?
An aqueous solution of hydrofluoric acid is 30.0% HF, by mass, and has a density of 1.101 g cm³. What are the molality and molarity of HF in this solution? 70.02mol and 40.2kg O 1.499mol and 21.4kg O 5.80mol and 32.0kg O
If 11.2 g of naphthalene, C 10H 8 (Molar mass= 128 g/mol), is dissolved in 107.8 g of chloroform, CHCI 3 (Molar mass = 118 g/mol), what is the molality of the solution? 0.0875 m 12.4 m 0.811 m 0.0941 m 0.0969 m
2. The concentrated sulfuric acid that we use in the laboratory is 98.0% H¿SO, by mass. Calculate the molality and molarity of the solution. The density of the solution is 1.83g/mL.
Calculate the molality of a solution formed by adding 3.40 g NH4Cl to 17.5 g of water.
What is the molality of a CuSO4 solution where 5.00 g CuSO4 are dissolved in 50.0 g water?
The molality of a sugar solution (C6H1206) is 2.94 m. How many total ions does C6H1206 break into when dissolved? What is the total molality of the solution?