ap bio (but its a question about chemistry)

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  1. AP Bio (but its a question about chemistry)

    no idea how to do this... describe how you would prepare from the specified stock solution: 400 mL of 0.45 M urea starting with a 6 M urea stock solution

    asked by katie on July 24, 2011
  2. AP Bio (but its a question about chemistry)

    i have no idea how to do this! Calculate the volume of the specified titrant required to neutralize 35 ml of .4 M NaOH. Titrant: 0.75 M H2SO4 [2NaOH + H2SO4 „» 2H2O + Na2SO4]

    asked by katie on July 24, 2011