[Review Topics] [References] Use the References to access important values if needed for this question. The boiling point of diethyl ether, CH3 CH₂2 OCH2 CH3, is 34.500 °C at 1 atmosphere. K, (diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 10.14 grams of the compound were dissolved in 270.0 grams of diethyl ether, the solution began to boil at 34.714 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound? g/mol Submit Answer Retry Entire Group 9 more group attempts remaining

[Review Topics] [References] Use the References to access important values if needed for this question. The boiling point of diethyl ether, CH3 CH₂2 OCH2 CH3, is 34.500 °C at 1 atmosphere. K, (diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 10.14 grams of the compound were dissolved in 270.0 grams of diethyl ether, the solution began to boil at 34.714 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound? g/mol Submit Answer Retry Entire Group 9 more group attempts remaining

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

Similar questions

c) To save money, some state Department of Transportation decided to replace relatively expensive calcium chloride (CaCl2) by more affordable beet juice (mostly made of sugar molecules) in the solutions used to treat the roads before a snow/freezing rain storm. However, the beet juice was not as effective at de-icing the roads as was the calcium chloride solution. When road temperatures were very low, the beet juice treatment did not prevent the water from freezing again. You are called to one of those Departments of Transportation to: 1) Explain that observation and 2) Justify why they should continue to use calcium chloride solutions even if it is more expensive. You may even suggest a cheaper alternative to calcium chloride that will be as effective in road de-icing. Provide your answers below.
< 11 of 19 I Review Constants | Periodic Table Part B A student placed 16.0 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 45.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution? Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) ? Value Units
4 7 A certain liquid X has a normal boiling point of 120.70 °C and a boiling point elevation constant K, =1.98 °C-kg-mol.A solution is prepared by dissolving some zinc chloride -1 %3D оте (ZnCl,) in 100. g of X. This solution boils at 121.5 °C. Calculate the mass of ZnCl, that was dissolved. alo Round your answer to 1 significant digit. Submit Assignment Continue O 2022 McGraw Hill LLC. Al Rights Reserved. Terms of Use Privacy Center Accessibility II Finder De F9 F10 F11 F12 DeX. F6 , F7 F8 F4 F5 F3 F1 APP1 F2 APP2 Esc APP3 II Back @ # 2$ % & %3D
Select one of the following formulas and describe all that it tells you about the suR's it represents, and the substance they compose. Consider, among other things: the Lewis structure, bonding type, type of ç.Ru systematic name, type of substance by composition, mass percent of each element, a balanced chemical equation for the formation of the compound from its elements, intermolecular forces, physical state and other physical properties you expect these forces to effect, (ag) solubility, (ag) dissolution equation, what and how much is in (ag) solution of 0.1 mol of the formula units, its electrolyte type, and any chemical reactions you may expect from the substance.. More facts - the better. Cl2 H2S NO Fe2S3
A chemistry student weighs out 0.084 of an unknown solid compound X and adds it to 350. mL of distilled water at 23. C. After 10 minutes of stirring, only some of the X has dissolved. The student drains off the solution, then washes, dries and weighs the X that did not dissolve. It weighs 0.042 kg. Using only the information above, can you calculate the solubility of Xin water at 23.° C ? If you said yes, calculate it. Be sure your answer has a unit symbol and the right number of significant digits. 0 yes no x10 ロ・ロ X 00
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 of water, the freezing point of the solution is lowered by 5.28°C. What is the composition by mass of the solid? g NaNO3 g Mg(NO3)2
1 for a certain substance X. When 38.6 g of urea (NH,), CO) The molal boiling point elevation constant K, =1.54 °C·kg mol are dissolved in 950. g of X, the 9. 2 solution boils at 113.3 °C. Calculate the boiling point of pure X. Round your answer to 4 significant digits. x10
Use the solubility curve below to determine how much NaNO, can dissolve in 300 g of water at 10 degrees Celsius. 100 90 NANO, 80 70 60 CaCl 50 Pb(NO)2 40 KCI NaCi 30 20 KCIO, 10 Ce,(SO 10 20 30 40 50 60 70 80 90 100 Temperature (°C) O 240 g O 160 g O 40 g O 80 g Solubility (g of salt in 100 g H,O) EONY K,Cr,O,
The molal boiling point elevation constant K = 1.15 °C·kg⋅mol the solution boils at 145.4 °C. Calculate the boiling point of pure X. Be sure your answer has the correct number of significant digits. °C x10 1 for a certain substance X. When 14.4 g of urea Ś ((NH,),CO) (NH₂) CO) are dissolved in 150. g of X,
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 of water, the freezing point of the solution is lowered by 5.04°C. What is the composition by mass of the solid?
In an mountainous location, the boiling point of pure water is found to be 95 °C. How many grams of sodium chloride must be added to 1 kg water to bring the boiling point back to 100 °C. (This is not graded)
A student dissolves 6.7 g of sucrose (C,,H,20) in 375. mL of a solvent with a density of 1.13 g/mL. The student notices 11 that the volume of the solvent does not change when the sucrose 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