A solution has $pH$ $=$ $0.78$. Find $[H^+]$ !
a) $0.78\;M$ b) $0.17\;M$ c) $0.11\;M$ d) $6.0 \cdot 10^{-14}\;M$
The correct answer is: b), because $10^{-0.78}$ $=$ $0.17\;M$
