Friday
November 28, 2014

Homework Help: GChem

Posted by Mike on Monday, August 10, 2009 at 12:20pm.

1. 25mL of 0.1M HCl is titrated with 0.1M NaOH. What is the pH when 30mL of NaOH have been added?

2. 25mL of 0.1M HCl is titrated with 0.1M NaOH. What is the pH after 15mL of NaOH have been added?

I don't know how to make calculation I assumed that for number 1 when you have added 25 mL of NaOH the pH would be neutral (7) but after you add the rest of the 5mL it would be greater than 7. However, we're suppose to give a specific pH value.

#2 I guessed that the pH would be very low. But how do make the calculations?

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