CHEMISTRY-TEXT
8th Edition
ISBN: 9780134856230
Author: Robinson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 13, Problem 13.125SP
Met-enkephalin is one of the so-called endorphins, a class of naturally occurring morphine-like chemicals in the brain. What is the molecular weight of met-enkephalin if 20.0 mL of an aqueous solution containing 15.0 mg of met-enkephalin at 298 K supports a column of water 32.9 cm high? The dens ity of mercury at 298 K is 13.534 gImL.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 13 Solutions
CHEMISTRY-TEXT
Ch. 13 - Prob. 13.1PCh. 13 - Prob. 13.2ACh. 13 - Prob. 13.3PCh. 13 - Prob. 13.4ACh. 13 - PRACTICE 12.5 A 50.0 mL sample of drinking water...Ch. 13 - APPLY 12.6 The legal limit for human exposure to...Ch. 13 - PRACTICE 12.7 What mass in grams of a 0.500 m...Ch. 13 - APPLY 12.8 What is the molality of a solution...Ch. 13 - PRACTICE 12.9 The density at 20°C of a 0.500 M...Ch. 13 - APPLY 12.10 The density at 20°C of a 0.258 m...
Ch. 13 - ThesolubilityofCO2inwateris 3.2102 M at 25 °C...Ch. 13 - APPLY 12.12 Use the Henry’s law constant you...Ch. 13 - PRACTICE 12.13 What is the vapor pressure in mm Hg...Ch. 13 - APPLY 12.14 A solution made by dissolving 8.110 g...Ch. 13 - PRACTICE 12.17 What is the vapor pressure of the...Ch. 13 - Conceptual APPLY 12.18 The following diagram shows...Ch. 13 - What is the normal boiling point in °C of an...Ch. 13 - APPLY 12.20 The following phase diagram shows a...Ch. 13 - Prob. 13.19PCh. 13 - APPLY 12.22 Cells in the human eye have an osmotic...Ch. 13 - PRACTICE 12.23 A solution prepared by dissolving...Ch. 13 - Prob. 13.22ACh. 13 - PROBLEM 12.25 What is the difference between a...Ch. 13 - PROBLEM 12.26 Urea has a high solubility in blood...Ch. 13 - Use Table 13.5 to calculate the osmotic pressure...Ch. 13 - Prob. 13.26PCh. 13 - Many people take vitamin supplements to promote...Ch. 13 - Prob. 13.28CPCh. 13 - Prob. 13.29CPCh. 13 - Prob. 13.30CPCh. 13 - Prob. 13.31CPCh. 13 - Prob. 13.32CPCh. 13 - Prob. 13.33CPCh. 13 - Prob. 13.34CPCh. 13 - Prob. 13.35CPCh. 13 - Prob. 13.36SPCh. 13 - 12.41 Why do ionic substances with higher lattice...Ch. 13 - Prob. 13.38SPCh. 13 - Prob. 13.39SPCh. 13 - Classify the strongest type of intermolecular...Ch. 13 - Classify the strongest type of intermolecular...Ch. 13 - Prob. 13.42SPCh. 13 - Prob. 13.43SPCh. 13 - Br2 is much more soluble in tetrachloromethane,...Ch. 13 - Predict whether the solubility of formaldehyde,...Ch. 13 - Prob. 13.46SPCh. 13 - Prob. 13.47SPCh. 13 - Arrange the following compounds in order of their...Ch. 13 - Prob. 13.49SPCh. 13 - Prob. 13.50SPCh. 13 - Prob. 13.51SPCh. 13 - Prob. 13.52SPCh. 13 - Prob. 13.53SPCh. 13 - The dissolution of CaCl2(s) in water is...Ch. 13 - The dissolution of NH4ClO4(s) in water is...Ch. 13 - Assuming that seawater is an aqueous solution of...Ch. 13 - Prob. 13.57SPCh. 13 - Propranolol°C16H21NO2) a so-called beta-blocker...Ch. 13 - Prob. 13.59SPCh. 13 - How would you prepare each of the following...Ch. 13 - Prob. 13.61SPCh. 13 - Prob. 13.62SPCh. 13 - Prob. 13.63SPCh. 13 - Prob. 13.64SPCh. 13 - Which of the following solutions has the higher...Ch. 13 - What is the mass percent concentration of the...Ch. 13 - Prob. 13.67SPCh. 13 - Prob. 13.68SPCh. 13 - Prob. 13.69SPCh. 13 - What is the concentration of each of the following...Ch. 13 - Prob. 13.71SPCh. 13 - The density of a 16.0 mass % solution of sulfuric...Ch. 13 - Prob. 13.73SPCh. 13 - What is the molality of the 40.0 mass % ethylene...Ch. 13 - Prob. 13.75SPCh. 13 - Prob. 13.76SPCh. 13 - Prob. 13.77SPCh. 13 - Prob. 13.78SPCh. 13 - Prob. 13.79SPCh. 13 - Look at the solubility graph in Figure 13.7, and...Ch. 13 - Prob. 13.81SPCh. 13 - Prob. 13.82SPCh. 13 - Prob. 13.83SPCh. 13 - Fish generally need an O2 concentration in water...Ch. 13 - At an altitude of 10, 000 ft, the partial pressure...Ch. 13 - Prob. 13.86SPCh. 13 - Prob. 13.87SPCh. 13 - Prob. 13.88SPCh. 13 - When solid CaCl2 is added to liquid water, the...Ch. 13 - Rank the following aqueous solutions from lowest...Ch. 13 - Which of the following aqueous solutions has the...Ch. 13 - What is the vapor pressure in mm Hg of a solution...Ch. 13 - What is the normal boiling point in oC of a...Ch. 13 - What is the freezing point in °C of a solution...Ch. 13 - Assuming complete dissociation, what is the...Ch. 13 - When 9.12 g of HCI was dissolved in 190 g of...Ch. 13 - Prob. 13.97SPCh. 13 - When 1 mol of NaCI is added to 1 L of water, the...Ch. 13 - Prob. 13.99SPCh. 13 - Draw a phase diagram showing how the phase...Ch. 13 - Prob. 13.101SPCh. 13 - What is the vapor pressure in mm Hg of the...Ch. 13 - What is the vapor pressure in mm Hg of a solution...Ch. 13 - What is the boiling point in oC of each of the...Ch. 13 - What is the freezing point in oC of each of the...Ch. 13 - Prob. 13.106SPCh. 13 - The van’t Hoff factor for KCl is i=1.85. What is...Ch. 13 - Hepatane (C7H16) and octane (C8H18) are...Ch. 13 - Prob. 13.109SPCh. 13 - Acetone, C3H6O , and ethyl acetate, C4H8O2, are...Ch. 13 - Prob. 13.111SPCh. 13 - Prob. 13.112SPCh. 13 - What is the mole fraction of each component in the...Ch. 13 - Prob. 13.114SPCh. 13 - A solution prepared by dissolving 3.00 g of...Ch. 13 - Prob. 13.116SPCh. 13 - Prob. 13.117SPCh. 13 - Prob. 13.118SPCh. 13 - What osmotic presure in mm Hg would you expect for...Ch. 13 - Prob. 13.120SPCh. 13 - Prob. 13.121SPCh. 13 - Prob. 13.122SPCh. 13 - If cost per gram were not a concern, which of the...Ch. 13 - Prob. 13.124SPCh. 13 - Met-enkephalin is one of the so-called endorphins,...Ch. 13 - Prob. 13.126SPCh. 13 - Prob. 13.127SPCh. 13 - Prob. 13.128SPCh. 13 - Prob. 13.129SPCh. 13 - How many grams of naphthalene, C10H8 (commonly...Ch. 13 - Prob. 13.131SPCh. 13 - Assuming that seawater is a 3.5 mass % solution of...Ch. 13 - There’s actually much more in seawater than just...Ch. 13 - Prob. 13.134SPCh. 13 - What is the van’t Hoff factor for K2SO4 in an...Ch. 13 - If the van’t Hoff factor for Lid in a 0.62 m...Ch. 13 - What is the value of the van’t Hoff factor for KCI...Ch. 13 - A solid mixture of KCI, KNO3, and Ba(N03)2 is...Ch. 13 - Prob. 13.139SPCh. 13 - An aqueous solution of a certain organic compound...Ch. 13 - Prob. 13.141SPCh. 13 - Prob. 13.142SPCh. 13 - A solution of 0.250 g of naphthalene (mothballs)...Ch. 13 - Prob. 13.144SPCh. 13 - Prob. 13.145SPCh. 13 - The steroid hormone estradiol contains only C, H,...Ch. 13 - Many acids are partially dissociated into ions in...Ch. 13 - Addition of 50.00 mL of 2.238 H2SO4 (solution...Ch. 13 - Prob. 13.149MPCh. 13 - Prob. 13.150MPCh. 13 - Combustion analysis of a 36.72-mg sample of the...Ch. 13 - Prob. 13.152MPCh. 13 - Prob. 13.153MPCh. 13 - Prob. 13.154MP
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
- The freezing point of 0.10 M KHSO3 is -0.38C. Which of the following equations best represents what happens when KHSO3 dissolves in water? (a) KHSO3(s)KHSO3(aq) (b) KHSO3(s) K+(aq)+HSO3(aq) (c) KHSO3(s) K+(aq)+SO32(aq)+ H+(aq)arrow_forwardBenzyl acetate is one of the active components of oil of jasmine. If 0.125 g of the compound is added to 25.0 g of chloroform (CHCl3), the boiling point of the solution is 61.82 C. What is the molar mass of benzyl acetate?arrow_forwardThe organic salt [(C4H9)4N][ClO4] consists of the ions (C4H9)4N+ and ClO4. The salt dissolves in chloroform. What mass (in grams) of the salt must have been dissolved if the boiling point of a solution of the salt in 25.0 g chloroform is 63.20 C? The normal boiling point of chloroform is 61.70 C and Kb = 3.63 C kg mol1. Assume that the salt dissociates completely into its ions in solution.arrow_forward
- The freezing point of a 0.11 m solution of HNO2 is -0.20C. (a) What is i for the solution? (b) Is the solution made (i) of HNO2 molecules only? (ii) of H+ and NO2- only? (iii) of more HNO2 molecules than H+ ions? (iv) primarily of H+ and NO2- ions with some HNO2 molecules?arrow_forward6-68 If we add 175 g of ethylene glycol, C2H6O2, per 1000. g of water to a car radiator, what will be the freezing point of the solution?arrow_forwardThe osmotic pressure of a solution containing 7.0 g of insulin per liter is 23 torr at 25 C. What is the molar mass of insulin?arrow_forward
- What is the freezing point of a solution of dibromobenzene, C6H4Br2, in 0.250 kg of benzene, if the solution boils at 83.5 C?arrow_forwardConcentrated hydrochloric acid contains 1.00 mol HCl dissolved in 3.31 mol H2O. What is the mole fraction of HCl in concentrated hydrochloric acid? What is the molal concentration of HCl?arrow_forward6-111 As noted in Section 6-8C, the amount of external pressure that must be applied to a more concentrated solution to stop the passage of solvent molecules across a semipermeable membrane is known as the osmotic pressure The osmotic pressure obeys a law similar in form to the ideal gas law (discussed in Section 5-4), where Substituting for pressure and solving for osmotic pressures gives the following equation: RT MRT, where M is the concentration or molarity of the solution. (a) Determine the osmotic pressure at 25°C of a 0.0020 M sucrose (C12H22O11) solution. (b) Seawater contains 3.4 g of salts for every liter of solution. Assuming the solute consists entirely of NaCl (and complete dissociation of the NaCI salt), calculate the osmotic pressure of seawater at 25°C. (c) The average osmotic pressure of blood is 7.7 atm at 25°C. What concentration of glucose (C6H12O6) will be isotonic with blood? (d) Lysozyme is an enzyme that breaks bacterial cell walls. A solution containing 0.150 g of this enzyme in 210. mL of solution has an osmotic pressure of 0.953 torr at 25°C. What is the molar mass of lysozyme? (e) The osmotic pressure of an aqueous solution of a certain protein was measured in order to determine the protein's molar mass. The solution contained 3.50 mg of protein dissolved in sufficient water to form 5.00 mL of solution. The osmotic pressure of the solution at 25°C was found to be 1.54 torr. Calculate the molar mass of the protein.arrow_forward
- Butylated hydroxyanisole (BHA) is used in margarine and other fats and oils. (It is used as an antioxidant and prolongs the shelf life of the food.) What is the molar mass of BHA if 0.640 g of the compound, dissolved in 25.0 g of chloroform, produces a solution whose boiling point is 62.22 C?arrow_forward(a) If you dissolve 10.0 g (about one heaping teaspoonful) of sugar (sucrose, C12H22O11) in a cup of water (250. g), what are the mole fraction, molality, and weight percent of sugar? (b) Seawater has a sodium ion concentration of 1.08 104 ppm. If the sodium is present in the form of dissolved sodium chloride, what mass of NaCl is in each liter of seawater? Seawater is denser than pure water because of dissolved salts. Its density is 1.05 g/mLarrow_forwardButane, C4H10, has been suggested as the refrigerant in household compressors such as those found in air conditioners. (a) To what extent is butane soluble in water? Calculate the butane concentration in water if the pressure of the gas is 0.21 atm. (kH = 0.0011 mol/kgbar at 25 C) (b) If the pressure of butane is increased to 1.0 atm, does the butane concentration increase or decrease?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY