Explore BrainMass

Explore BrainMass

    Solving for pH

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    I have .20M of a solution NaCN. Ka for HCN = 4.0 x10 10. How do I solve for pH?

    © BrainMass Inc. brainmass.com March 4, 2021, 5:53 pm ad1c9bdddf
    https://brainmass.com/chemistry/acids-and-bases/solving-for-ph-16347

    Solution Preview

    For these questions you must learn the general formula for a weak acid (and weak bases, just a little adjustment).

    Ka = [H+][A-]/ [HA] which is true for any and all weak acids because...

    HA --> H+ + A- and any K ...

    Solution Summary

    This solution is provided in 258 words and uses the formula for a weak acid/base to find pH.

    $2.49

    ADVERTISEMENT