When 127. mg of a certain molecular compound X are dissolved in 55.0 point of the solution is measured to be 1.6 °C. Calculate the molar mas what If you need any additional information on dibenzyl ether, use only your answer has a unit symbol, and is rounded to the correct number of

When 127. mg of a certain molecular compound X are dissolved in 55.0 point of the solution is measured to be 1.6 °C. Calculate the molar mas what If you need any additional information on dibenzyl ether, use only your answer has a unit symbol, and is rounded to the correct number of

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: An aqueous solution is made by dissolving 19.8 grams of manganese(II) sulfate in 353 grams of water.…

A: Molality is the way to express the concentration of solution as the ratio of moles of solute per…

Q: 1. Adding a solute to a solvent freezing point because the chemical the forces between the makes it…

A: Given: Effect of adding solute on the freezing point of the solvent.

Q: Calculate molarity for 2.0L of solution containing 0.706 moles of solute

A: Molarity is a measure of the concentration of a solute in a solution, or of any chemical species in…

Q: Calculate the boiling point of a solution formed by dissolving 15.32 grams of NaCl in 200.0 grams of…

A: Answer:Properties of a solution that depend on the number of solute particles present in it are…

Q: What will be the change in freezing point temperature (in °C) of barium hydroxide when added to 500…

A: Change in freezing point of a solution is equal to the product of cryoscopic constant and molality…

Q: When NH4CI is added to water, the resulting solution feels cool to the touch. Which best describes…

A: Sign of ∆T and ∆H depends on the compound which is dissolved in water.

Q: The normal boiling point of a certain liquid X is 146.20 °C, but when 123. g of benzamide (C,H,NO)…

Q: sThe enthalpy of solution for solid KClO3 is 41.4 kj/mol If certain amount of solid potassium…

A: The solution temperature decreases when KClO3 dissolves in water.

Q: A girl bought a pet fish. Upon returning home, she put it in a bowl of recently boiled water that…

Q: At a given temperature, pentane with a vapor pressure of 624 torr is mixed with hexane with a vapor…

A: Raoult's law for solution of volatile liquids is P = P0 * x Where P = partial pressure and P0 =…

Q: 2. Calculate for the final boiling point of a 2.70M aqueous solution of KBr. The boiling point…

Q: Lithium chloride has a lattice energy of -834 kJ/mol and an heat of solution of -37.0 kJ/mol.…

Q: 2. Pure cyclohexane freezes at 6.54°C and its molar freezing point depression constant is 20.0°C/m.…

Q: How many moles of NaCl are present in 350 mL of a 2 M…

Q: The density of a 1.75 M solution of HCI is 1.0585 g/mL. The molality of the solution is:

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

Q: Test Tube Solute Mass of Deionized Water (g) Mass of solute (g) Freezing Point (C) 1 None 4.140g X…

A: The data given is, Test Tube Solute Mass of Deionized Water (g) Mass of solute (g) Freezing Point…

Q: A 2.50 L solution (d = 0.9767 g/ml) that is 13.8% ethanol is obtained. Suppose from this solution,…

A: An anti-freeze is a substance that lowers the freezing point of water or delays the freezing of…

Q: How do I use the molality of a substance to calculate the molar mass? Example: molality is .122M of…

A: Given:Molality = 0.122 m = 0.122 mol/Kg.Mass of the solute = 0.346 g.Mass of solvent = 7.79 g =…

Q: How does the solubility of gas change when the solvent is getting colder? (think carbon dioxide in…

A: We need to predict solubility of gas at low temperature

Q: A 10 mL of 0.5% solution composed of barium chloride and sulfuric acid is to be prepared. How many…

A: Given: volume of solution=10 mLcomposition of BaCl2=0.5% To find: Amount of BaCl2 Amount of sulfuric…

Q: QUESTION 10 The molar mass of a compound can be determined by the freezing point depression method.…

A: Freezing point depression defines that the addition of solute to a solvent result in the lowering of…

Q: A solution is prepared by dissolving 0.77 molof MgCl2 in 0.50 kg of water. How many moles of ions…

A: #Part-A: MgCl2 being a soluble ionic compound is completely dissociated in water to give 1 Mg2+(aq)…

Q: At a certain temperature the vapor pressure of pure acscenic acid (HCH3CO2) is measured to be 261.…

Q: Do you expect AHsoln to be a large positive number, a large negative number, or close to zero?…

A: The enthalpy of solution is the amount of heat evolved or absorbed by the solution when the solute…

Q: Calculate the molarity of a sodium hydroxide solution that has a volume of 1,634.6ml and contains…

A: Molarity is defined as the number of moles of solute present per liter of the solution. It is…

Q: 10. When you dilute a solution, you need to add more to the solution. O dilute solute solvent energy

A: The concentration of a solution is directly proportional to the number of moles of a solute present…

Q: A 40.7g of a nonelectrolyte is dissolved in 220g of water to make a solution. The solution’s…

A: The given data contains, mass of nonelectrolyte = 40.7 g. mass of water = 220 g. Temperature =…

Q: Calculate the percent by mass of a solution made of 10.0 grams of KOH and 70.0 grams of water.…

Q: Two beakers are placed in a closed container (left). One beaker contains water, the other a…

A: Osmosis is the movement of a solvent across a semipermeable membrane toward a higher concentration…

Q: What is depression in freezing point? Explain with example

A: The depression in freezing point is the types of the colligative property of the solution that is…

Q: A certain sample of concentrated hydrochloric acid is 54.9 % HCI. Calculate the molality of this…

A: To calculate the molality , we would need moles of HCl and mass of solvent . So we would use given…

Q: A certain tonic compound X has a solubility in water of 32.8 at 10. "C. Calculate the greatest mass…

A: Given : solubility = 32.8 g/Litre Temperature = 10 °C = 283 K

Q: The freezing point of water is 0.00°C at 1 atmosphere. If 10.82 grams of magnesium sulfate, (120.4…

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: Why is the curve for the freezing of a solution different in slope from the freezing of the solvent?

A: The solvent is in pure form. But in solution, there is solute along with solvent molecules

Q: Find the intermolecular force ammonia has with water and the intermolecular force ammonia has with…

A: Solubility of any substance means the mixing of one component into the other component. If the…

Q: Determine the boiling point of a solution which contains 0.21 mol of sucrose in 98 g of water. (For…

Q: 2. Chloroform and methanol form an ideal solution. The solution boils at 22 °C and 0.255 atm . At 22…

A: Given: Vapor pressure of pure chloroform = PA = 0.311 atm Mole fraction of pure chloroform = XA…

Q: calculate for the standardized concentration of sodium hydroxide (MM of KHP = 204.2 g/mol) using…

Q: Disinfectants has a 3.0% (by mass) concentration of hydrogen peroxide (H2O2) in water. If the…

A: Given, Mass percent of H2O2 in solution = 3.0% Density of the solution = 1.0 g/cm3 a. Calculate…

Q: 0.29 g of hydroquinone is added to 29.50 g of water. The freezing point is -0.01 degrees celcius.…

A: The question is based on the concept of freezing point depression. We have to calculate molar mass…

Q: Pure toluene (C7H8) has a normal boiling point of110.60°C. A solution of 7.80 g of anthracene…

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

Q: Arrange the following compound base on its decreasing solubility in water * А. B. H H H H HHH…

Q: Consider the energy diagram for a solution formed between molecules A and B. What can be said about…

A: Heat enthalpy of solute (∆Hsolute) is the energy required to break the intermolecular forces between…

Q: Match the following aqueous solutions with the appropriate letter from the column on the right..…

A: When non volatile solute are dissolved in solvent then freezing point of resultant solution…

Q: A solution of propylene glycol (antifreeze) in the car's radiator has a freezing point of -20°c.…

A: Given data contains, Freezing point is -20°C. Freezing point of water is 0.00°C. The change in…

Question

When 127. mg of a certain molecular compound X are dissolved in 55.0 g of dibenzyl ether
point of the solution is measured to be 1.6 °C. Calculate the molar mass of X.
If
you need any additional information on dibenzyl ether, use only what you find in the ALEKS Data resource. Also, be sure
your answer has a unit symbol, and is rounded to the correct number of significant digits.
((C6H₂CH₂)₂0),
2
the freezing
OO
B
olo
Xu

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: Description of question

VIEW

Step 2: calculate molar mass of X

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 14 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

Assume that a 1-L solution contains 35g of potassium chloride (MM: 74.6 g/mol). Compute for the osmotic pressure if the solution is at 298 K. (R=0.08206 L-atm/ mol-K) A. 22.95 atm В. 24.50 atm C. 11.47 atm D. -11.47 atm Suppose that a 1 m sugar-water solution raises the boiling point of water by 0.51 °C. How much will the boiling point of water increase if the sugar-water solution amounts to 3 m? A. 0.51 °C В. 1.02 "С C. 1.53 °C D. 101.53 °C What is the vapor pressure at 25°C of a solution made by adding 50 mL of C3HO3 to 500 ml of distilled water? Given the following: density of C aHuOɔ at 25°C is1.26 g/ml; vapor pressure of water at 25°C: is 23.8 torr A. 27.8 torr B. 0.98 torr C. 24 torr D. 23.2 torr
1 ONLY
A solution system salt (s) + energy > ions (aq) is in equilbirum at 20 degrees Celsius with some salt on the bottom of the container. What will be the effect on the system if: The temperature decreases to 10 degrees Celsius? Stress: Desire: Shift: Final volume of water (l):
When working with molality, and no amount of solvent is specified, it may be convenient to assume Molality (m): Moles of solute per kilograms of solvent. Molality moles of solute kilograms of solvent You have 1 kg of solution. You have 1 kg of solvent. You have 1 L of solvent. You can never make assumptions about molality.
When temperature increases, the solubility of a gas O is unaffected increases may increase or decrease depending on the nature of the compound. on O decreases
A 50:50 mixture of two liquids A and B is boiling under an atmosphere of 750 torr. At the temperature of the boiling mixture, pure liquid A normally has a vapor pressure of 1000 torr. What is the mol% of solvent A in the mixture above the boiling liquid? 100%
Part A A solution contains 0.119 mol H₂O and an unknown number Express the answer using three significant figures. moles of sodium chloride. The vapor pressure of the solution at 30°C is 25.5 torr. The vapor pressure of pure water at 30°C is 31.7 torr. Calculate the number of moles of sodium chloride in the solution mol NaCl
The vapor pressures of pure benzene and pure toluene at 20 ºC are 76 torr and 21 torr, respectively. At 20 ºC, a solution of benzene and toluene (assume the solution is ideal), has a vapor pressure of 55 torr. What is the mole fraction of benzene in the solution? Select one: a.0.62 b.0.38 c.0.83 d.0.26
The normal temperature range of the liquid phase of pure water is 0°C to 100°C. Which of the following solutions will have the largest temperature range for the liquid state? a. 0.10 M sodium phosphate b. 0.10 M sodium chloride c. 0.10 M sodium sulfate d. 0.10 M sodium carbonate
✓mall amount of acetonitrile (CH₂CN) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.) CH₂CN 98 B H₂O Use these sketches to answer the questions in the table below. The enthalpy of solution AH soln is negative when CH3CN dissolves in water. Use this information to list the stages in order of increasing enthalpy. Would heat be absorbed or released if the system moved from Stage A to B? What force would oppose or favor the system moving from Stage A to B? Check all that apply. 0 O absorbed O released O neither absorbed nor released none Olonic bonding force O covalent bonding force metal bonding force Ohydrogen-bonding force dipole force ion-dipole force Odispersion force 0.0. X solution. S
Partial molar volume is an extensive property of solutions. True False
Beaker A Beaker B Beaker B shows the solvation of a because... O Salt, it breaks apart into ions. O Sugar, it stays together as molecules. O Sugar, it breaks apart into ions. Salt, it stays together as molecules.