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September 2, 2014

September 2, 2014

Posted by **ashleigh** on Friday, November 2, 2007 at 11:15pm.

- science -
**DrBob222**, Friday, November 2, 2007 at 11:37pmUse the Henderson-Hasselbalch equation.

pH = pKa + log [(base)/(acid)]

You have pH, pKa, and molarity of the base. Solve for (acid) [which in this case is the NH4Cl).

Knowing (acid), calculate grams needed to make 700 mL of that concentration.

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