What is the pH or a solution with $[H^{+}] = 7.0 \times 10^{- 7}$ $[H^+] = 7.0 times 10^-7$ ?

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Answer 1 · 2017-02-01T21:34:36

pH of $6.2$ $6.2$ .

The pH of a solution has a range of 0-7. Each step having a logarithmic relation.

Thus we use the following equation: $p H = - log [H^{+}]$ $pH = -log[H^+]$

$p H = - log [H^{+}]$ $pH = -log[H^+]$

$= - log [(7 \times 10^{- 7})]$ $= -log[(7xx10^-7)]$

$= 6.15490196$ $=6.15490196$

$= 6.2$ $=6.2$

Therefore, the acid has a pH of $6.2$ $6.2$ . This number is very close to $7$ $7$ , so we can conclude it is a weak acid.

Hope this helps :)

What is the pH or a solution with [H+]=7.0×10−7[H^+] = 7.0 times 10^-7?