Shines

Newest questions and responses by Shines
  1. Chemistry

    A reaction is first order in A. If the rate constant of the reaction is 3.45x10^-3 s-1, what is the half life of the reaction? a. 4.98x10^-3 s b. 200 s c. 3.45x10^-3 s d. 100 s e. 1.73x10^-3 s

    asked on December 6, 2013
  2. Chemistry

    The half-life (t1/2) of a first order reaction is 0.100 s. What is the rate constant? a. 6.93 s-1 b. 0.693 s-1 c. 0.0693 s-1 d. 0.144 s-1 e. 3.01 s-1

    asked on December 6, 2013
  3. Chemistry

    An unknown solution was treated with BaCl2 and a white precipitate formed which did not dissolve in hydrochloric acid. What anion(s) could be present in the unknown solution?

    asked on October 15, 2013
  4. Chemistry

    A salt was completely soluble in water. When this solution was treated with AgNO3 no precipitate was formed. What anions could be present?

    asked on October 15, 2013
  5. Chemistry

    When 0.354 g of an unknown nonelectrolyte compound was dissolved in 12.5 g of benzene a solution was formed that froze at 4.46 degrees C. Calculate the molar mass of the unknown compound. The freezing point of benzene if 5.48 degrees C, and the Kf of

    asked on October 15, 2013