Recent content by kazimmerman

  1. K

    What percentage of a boat is above water when it has a density of 0.75 g/cc?

    Thanks everybody. That was my line of thinking, but I wanted to be sure I wasn't mistaken.
  2. K

    What percentage of a boat is above water when it has a density of 0.75 g/cc?

    Homework Statement A boat with a density of 0.75 g/cc is floating in water. What percentage of the boat is floating above the surface of the water? Homework Equations I don't know any general formulas for buoyancy. I was hoping someone here could provide one. The Attempt at a...
  3. K

    Why does Ba(OH)2 require 20 mL HCl not 40 mL in neutralization?

    Thanks for the replies. I had it confirmed with my teacher today and he simply made a mistake when grading the test. ;)
  4. K

    Why does Ba(OH)2 require 20 mL HCl not 40 mL in neutralization?

    I'm having trouble understanding why the fact that there are two hydroxides doesn't matter in this problem. What volume of 0.150-molar HCl is required to neutralize 25.0 milliliters of 0.120-molar Ba(OH)2? I thought the setup would look like this simple enough: (25.0 mL)(.120 M)(2) =...
  5. K

    Chemical Kinetics - Rate Laws and Mechanisms

    So, for (c), wouldn't it also be half of the initial concentration of NO, .02? And, as far as (d) goes, I know that choice I is correct, but I just don't understand why.
  6. K

    Chemical Kinetics - Rate Laws and Mechanisms

    Homework Statement This is straight off an old AP Exam, but I can't seem to find it online so I'm hoping you all can help me out. 2 NO(g) + Br2(g) --> 2 NOBr(g) The following results were obtained in experiments designed to study the rate of the reaction above. Experiment Initial...