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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Wienerbroed on June 26, 2021, 06:23:29 PM

Title: Need help finding pH
Post by: Wienerbroed on June 26, 2021, 06:23:29 PM

I need help with the following question:

"Benzoic acid (C7H5O2H) has a pK_a of 4,20 at 25,0 °C".
A: What is the pH if 12,21 grams of sodium benzoate is mixed in with 4,00 liters of water (25,0 °C)?
B: If 10,00 milliliters of 10,00 M sodium hydroxide is added, what does the pH become?

Title: Re: Need help finding pH
Post by: Borek on June 27, 2021, 03:08:55 AM

Please read the forum rules (https://www.chemicalforums.com/index.php?topic=65859.0). You have to show your attempts at answering the question/solving the problem to receive help, it is a forum policy.