csb

Most popular questions and responses by csb
  1. chemistry

    What volume of 0.115M NaOH is required to reach the equivalence point in the titration of 25.00 mL of 0.200M of HF? Ka(HF)=7.4 x 10^-4

    asked on December 5, 2010
  2. chemistry

    a reaction is first order and it takes 324 minutes for the reaction to be 50% complete. How long will it take for the reaction to be 85% complete at the same temperature?

    asked on October 5, 2010
  3. chemistry

    A reaction is first order and it takes 324 minutes for the reaction to be 50.0% complete. How long will it take for the reaction to be 85.0% complete at the same temperature? The answer is 887 minutes but I have no idea how he got that? help

    asked on October 6, 2010
  4. chemistry

    enzymes and substrates overall reaction: S -> P step 1: E + S -> ES fast step 2: ES -> E + S fast step 3: ES -> E + P slow what is the order of the reaction in E and what is the order of reaction in S?

    asked on October 10, 2010
  5. chemistry

    enzymes and substrates overall reaction: S -> P step 1: E + S -> ES fast step 2: ES -> E + S fast step 3: ES -> E + P slow what is the order of the reaction IN E and what is the order of reaction in S?

    asked on October 8, 2010
  1. chemistry

    it says the answer is 887 minutes. am i doing something wrong . when i use that formula i don't get 887

    posted on October 5, 2010
  2. math

    he grated it

    posted on November 1, 2009