J q r b the solubility of a gas in water decreases as

Info icon This preview shows pages 2–4. Sign up to view the full content.

View Full Document Right Arrow Icon
\J' Q -- r- b. the solubility of a gas in water decreases as the water temperature increases. c. dissolving a solid in water is a physical change. d. solubility of most solids increases with temperature. 6. The freezing point of 1 M NaCl is than 0"C and the boiling point of the solution is than 100'C. Q)low".,lower 7.The properties described in question 6 are referred to as the c. higher, lower d. higher, higher properties of solutions. d. group b. lower, higher fhUieative b. collective c. joint
Image of page 2

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Q encra[ anl flnntyticaf fEtementary fftembtry I I, q a ff 20 1 2 8. During the process of a dilution, a. the volume of solution 13. What concentration unit is necessary , a. molality b. molaritY 14. What concentration unit is necessary a. molarity b. molalitY Instructor W. Song which of the following quantity does not change? b. the amount of solvent d. the color of solution C.)h. amount of solute 9. What is the definition of osmotic pressure? a. It is the pressure of atoms in the reaction system when osmosis takes place' ih,It is the pressure one applies over the solvent to start osmosis process' c. It is the air pressure in the room when osmosis is taking place. d. It is the pressure that has to be applied over the solution in order to prevent osmosis from occurring. 10. The mole fraction of calcium chloride in an aqueous solution is0.0724. What is the percent mass of CaClz in the solution? a.4.46%o i t:32.5% c.7.24oh d.36.2% 11. A substance that conducts electricity when present in an aqueous solution is called a. a conductive compound b. a nonelectrolyte i. an electrolyle d. an electric compound 12. Which of the following aqueous solutions will freeze at the lowest temperature? a. 0.10 m KCI b. 0.20 m CoHrzOe (glucose; nonelectrolyte) r i: o. r 5 m srclz d. o.o5o m Alcl: for the calculation of boiling point elevation? c. mass fraction d. mole fraction for the calculation of vapor pressure lowering? 'C'i mole fraction d. mass fraction 15. The boiling point elevation constant for water is 0.52'C /m.
Image of page 3
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern