Kim K

Most popular questions and responses by Kim K
  1. Chemistry 110

    Pure water in contact with air has a higher conductivity than the same water that has had nitrogen gas bubbled through it. Why?

    asked on November 9, 2010
  2. Chemistry 110

    How many grams of Au2S can be obtained from 1017 mol of Au? The answer is 249. How did they get that?

    asked on November 17, 2010
  3. Chemistry 110

    3. Suppose that part (II) of the experiment were carried out with aqueous NaOH instead of Ba(OH)2 to form soluble Na2SO4 along with H2O as products. (a) Write the overall balanced equation. (b) Write the net ionic equation. (c) How would the graph of

    asked on November 9, 2010
  4. chemistry

    How many grams of Au2S can be obtained from 1.17 mol?

    asked on November 16, 2010
  5. Chemistry 110

    Write the formulas of the principal molecular or ionic species present in an aqueous solution of each substance. (a) Sodium Chloride, NaCl (b) Hydrogen bromide, HBr (c) Iron (III) sulfate, Fe2(SO4)3 (d) Ethanol, CH3CH2OH (e) Glucose, C6H12O6 (f) Ammonium

    asked on November 9, 2010
  6. chemistry 110

    Calculate the empirical formula of a compound containing 52.14% C, 13.12% H, and 34.73% O. I don't understand how they got the answer. please help

    asked on December 15, 2010
  7. chemistry 110

    Write the net ionic equation for NaOH to form soluble Na2SO4 along with H2O as products.

    asked on November 9, 2010
  8. Phys... vectors

    Consider the following three vectors: a = 3i + 4j ; b = pi + 2j ; c = mi + nj , where m, n and p are constants. If:  a + b = 9i + 6j  a.c = 10  b x c = 2k Show that p = 6, and determine values for m and n. i got the p=6 as for the rest...what i did so

    asked on October 9, 2008
  9. Chemistry 110

    4. The electrical conductivity of deionized water is commonly used as an index of its purity. Explain.

    asked on November 9, 2010
  10. Research

    What is the value of knowledge to the following social systems/institutions? -Society as a whole -Private firms -Providers of social services -Policymakers -Nation states -Individual persons Is gaining knowledge by gossip a distinct way of knowing or is it

    asked on October 11, 2009
  11. biology

    Name the 4 factors that control the amount and rate of gas exchange.

    asked on October 26, 2011
  1. Research

    What is the value of knowledge to the following social systems/institutions? -Society as a whole -Private firms -Providers of social services -Policymakers -Nation states -Individual persons

    posted on October 11, 2009
  2. Phys... vectors

    wow...lol...look at what one little mistake can do THANKS!~ i got it now

    posted on October 9, 2008