CHEMISTRY
2nd Edition
ISBN: 9781593995782
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 11, Problem 10E
Explain why solutions of HBr in benzene (a nonpolar solvent) are nonconductive, while solutions in water (a polar solvent) are conductive.
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Chapter 11 Solutions
CHEMISTRY
Ch. 11 - How do solutions differ from compounds? From other...Ch. 11 - Which of the principal characteristics of...Ch. 11 - When KNO3 is dissolved in water, the resulting...Ch. 11 - Give an example of each of the following types of...Ch. 11 - Indicate the most important types of...Ch. 11 - Predict whether each of the following substances...Ch. 11 - Heat is released when some solutions form; heat is...Ch. 11 - Solutions of hydrogen in palladium may be formed...Ch. 11 - Explain why the ions Na+ and CI- are strongly...Ch. 11 - Explain why solutions of HBr in benzene (a...
Ch. 11 - Consider the solutions presented: (a) Which of the...Ch. 11 - Compare the processes that occur when methanol...Ch. 11 - What is the expected electrical conductivity of...Ch. 11 - Why are most solid ionic compounds electrically...Ch. 11 - Indicate the most important type of intermolecular...Ch. 11 - Suppose you are presented with a clear solution of...Ch. 11 - Supersaturated solutions of most solids in water...Ch. 11 - Suggest an explanation for the observations that...Ch. 11 - Calculate the percent by mass of KBr in a...Ch. 11 - Which of the following gases is expected to be...Ch. 11 - At 0 C and 1.00 atm, as much as 0.70 g of O2 can...Ch. 11 - Refer to Figure 11.11. (a) How did the...Ch. 11 - The Henry's law constant for CO2 is 3.4102 M/atm...Ch. 11 - The Henry's law constant for O2 is 1.3103M /atm at...Ch. 11 - How many liters of HCI gas, measured at 30.0 C and...Ch. 11 - Which is are part of the macroscopic domain of...Ch. 11 - What is the microscopic explanation for the...Ch. 11 - Sketch a qualitative graph of the pressure versus...Ch. 11 - A solution of potassium nitrate, an electrolyte,...Ch. 11 - What are the mole fractions of H3PO4 and water in...Ch. 11 - What are the mole fractions of HNO3 and water in a...Ch. 11 - Calculate the mole fraction of each solute and...Ch. 11 - Calculate the mole fraction of each solute and...Ch. 11 - Calculate the mole fractions of methanol, CH3OH;...Ch. 11 - What is the difference between a 1 M solution and...Ch. 11 - What is the molality of phosphoric acid, H3PO4, in...Ch. 11 - What is the molality of nitric acid in a...Ch. 11 - Calculate the molality of each of the following...Ch. 11 - Calculate the molality of each of the following...Ch. 11 - The concentration of glucose, C6H12O6, in normal...Ch. 11 - A 13.0% solution of K2CO3 by mass has a density of...Ch. 11 - Why does 1 mol of sodium chloride depress the...Ch. 11 - What is the boiling point of a solution of 115.0 g...Ch. 11 - What is the boiling point of a solution of 9.04 g...Ch. 11 - What is the freezing temperature of a solution of...Ch. 11 - What is the freezing point of a solution of 9.04 g...Ch. 11 - What is the osmotic pressure of an aqueous...Ch. 11 - What is osmotic pressure of a solution of bovine...Ch. 11 - What is the molar mass of a solution of 5.00 g of...Ch. 11 - A sample of an organic compound (a nonelectrolyte)...Ch. 11 - A 1.0 m solution of HCI in benzene has a freezing...Ch. 11 - A solution contains 5.00 g of urea, CO(NH2)2, a...Ch. 11 - A 12.0-g sample of a nonelectrolyte is dissolved...Ch. 11 - Arrange the following solutions in order by their...Ch. 11 - Calculate the boiling point elevation of 0.100 kg...Ch. 11 - How could you prepare a 3.08 m aqueous solution of...Ch. 11 - A sample of sulfur weighing 0.210 g was dissolved...Ch. 11 - In a significant experiment performed many years...Ch. 11 - Lysozyme is an enzyme that cleaves cell walls. A...Ch. 11 - The osmotic pressure of a solution containing 7.0...Ch. 11 - The osmotic pressure of human blood is 7.6 atm at...Ch. 11 - What is the freezing point of a solution of...Ch. 11 - What is the boiling point of a solution of NaCI in...Ch. 11 - The sugar fructose contains 40.0% C, 6.7% H, and...Ch. 11 - The vapor pressure of methanol, CH3OH, is 94 torr...Ch. 11 - The triple point of air-free water is defined as...Ch. 11 - Meat can be classified as fresh (not frozen) even...Ch. 11 - An organic compound has a composition of 93.46% C...Ch. 11 - A sample of HgCI2 weighing 9.41 g is dissolved in...Ch. 11 - A salt is known to be an alkali metal fluoride. A...Ch. 11 - Identify the dispersed phase and the dispersion...Ch. 11 - Distinguish between dispersion methods and...Ch. 11 - How do colloids differ from solutions with regard...Ch. 11 - Explain the cleansing action of soap.Ch. 11 - How can it be demonstrated that colloidal...
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- Methanol (CH3OH) is a nonelectrolyte, but it is miscible with water. Write an equation for the dissolution of methanol in water.arrow_forwardPlace 8.5 g of sodium nitrate and 7.5 g of potassium chloride in a 100 ml beaker and add 25 ml of water. Warming and stirring to dissolve completely. Assuming a volume of 25 ml for the solution, calculate the polarity of the solution with respect to NaNO3, KCl, NaCl, KNO3.arrow_forwardDescribe the process by which the ionic compound, LiCl, would dissolve in the polar solvent, CH3COCH3.arrow_forward
- At 25°C Henry's law constant for the solubility of oxygen gas in water is 3.30 x 107 torr. Calculate the solubility of oxygen at room temperature in ppm. Consider air to be 20% O₂ at room temperature. The molar mass of O₂ is 32 g mol-¹.arrow_forwardAnswer the following questions in minimum 5 sentences 1. Why is a solution of Cu (NH3)42+ blue?2. Identify factors that cause the Beer’s law relationship to depart from linearity.arrow_forwardB :The water of crystallization in NaCI. 4H20 isarrow_forward
- 2. What is the freezing point of a solution prepared by adding 150. g trichothecin (C19H24O5) to 0.867 kg ofbenzene? The freezing point of pure benzene is 5.5 °C. The freezing point constant for benzene is 5.12 °C/m.arrow_forwardA 365 µM solution of a dye molecule, Rhodamine 6G, dissolved in methanol is allowed to sit open to the air such that the volume of the solution is reduced to 43% of its original volume due to evaporation of methanol. Assuming that no dye molecules are lost during the evaporation process, what is the concentration of the dye in the remaining ethanol after evaporation?arrow_forwardDetermine the osmotic pressure of a 0.0125 M solution of CrCl3 at 25 °C. Assume 100% dissociation of CrCl3.arrow_forward
- A water sample is to be treated using alum as Al2(SO4)3●14.2 H2O. The water has the following constituents: mg/L Ca2+ 37 Na+ 6.5 Mg2+ 8.1 K+ 1.2 Fe3+ 1.0 HCO3- 119 SO42- 22 Cl- 20 NO3- 0.1 Is the water analysis complete according to the principle of electroneutrality?arrow_forwardA solution was prepared by dissolving solute T in 120 g benzene. The freezing point of this solution was recorded as 5.18 °C. Calculate the mass of solute Tin this solution. Solute T is nondissociating. Molar mass of solute T : 92.6 g/mol Tf for pure benzene: 5.50 °C Kf benzene : 5.12 °C/m A. 7.5 g 0.081 g В. c. 11.9 g 0.69 g E. 0.89 garrow_forwardA student calculates that a .200 m aqueous solution of CH3OH and a .100 m solution of NaCl should exhibit the same freezing point but finds that the methanol solution has a lower freezing point experimentally. Why would this occur?arrow_forward
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