A solution is prepared from 10.0mL of 0.100M cacodylic acid (Ka=6.5x10-7), and 10.0mL of 0.080M NaOH. This this, the equivalent of 3.62x10-7g of solid morphine (a weak base; MW=285.34; Kb=1.6x10-6) was added. If we call morphine a base, B, calculate the fraction of morphine present in the protonated form, BH+.
The hint to this problem was that there is an easy way and a hard way. Could someone tell me which method would be considered the easy way and which would be considered the hard way?