- Acid - Base Indicators Acid - base indicators (also known as pH indicators) are substances which change color with pH. They are usually weak acids or bases. Consider an indicator which is a weak acid, with the formula HIn. At equilibrium, the following chemical equation is established.
- CHEM 1412. Chapter 17. Acidpg. 2 -Base Equilibria (Homework) Ky 4. Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C 6 H 5 CO 2 H) and 0.15M sodium benzoate (C 6 H 5 COONa). [K a = 6.5 10 – 5 for benzoic acid] A. 3.97 B. 4.83 C. 4.19 D. 3.40 E. 4.41 5. A solution is prepared by mixing 500. mL of 0.10 M NaOCl and 500 ...
- Mar 07, 2009 · 1 decade ago. Favorite Answer. alright here we go. your main mistake is that NH4 is a weak base, not a strong acid. There for the compound is basic. Login to reply the answers. Still have questions?
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