Recent content by monae

  1. M

    What Is the pH at Equivalence for a Weak Acid-Strong Base Titration?

    25 mL of 0.1 M HOAc are titrated with 0.15 M NaOH. What is the pH at equivalence? I know that the pH at start will be greater than 1.0 and the pH at equivalence will be greater than 7 since its a titration of a weak acid and a strong base. But what I don't know is whether or not there is a...
  2. M

    Solve 0.1% w/w Concentration Problem: Beer's Law & C15H6N4

    Problem: Assume the human eye can detect light with transmittance of 0.35. The colored form of the indicator has ε = 8.79 x 10^5. and λmax = 580 nm. How much indicator in ml should be used if the indicator has concentration 0.1% w/w in water. Equation Used: Beer's Law = A = εbc where ε...
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