Chem 152 S'10 PLTL 4 - Chem 152 PLTL#4 Solutions 1 What is...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 152 PLTL #4 Solutions 1. What is the mass percent of zinc chloride of a 1.12 m zinc chloride solution a. 1.52% b. 7.55% c. 13.2% d. 18.0% e. 24.6% 2. What is the mol fraction of potassium bromide in a solution that is 14.3% by mass potassium bromide? 3. What is the mass percent FeCl 3 in a solution that is 1.84 m ? 4. A 1.34 M NiCl 2 solution has a density of 1.12 g/mL. What is the mass percent of NiCl 2 of the solution?
Image of page 1

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

View Full Document Right Arrow Icon
5. What is the mole fraction of zinc nitrate in a solution that is 1.45 M and has a density of 1.22 g/mL? a. 0.0269 b. 0.0276 c. 0.0951 d. 0.291 e. 0.378 6. Hydrobromic acid is commercially available in a 3.40 mass percent solution which has a density of 1.31 g/mL. What is the molarity of the commercially available hydrobromic acid? 7. Considering the particles involved, explain why a solution has each of the following properties as compared to the pure solvent. a. a lower vapor pressure: b. a higher boiling point: c.
Image of page 2
Image of page 3
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