Answer
The hydrogen ion concentration of a healthy person's stomach acid is $= 4.37 \times 10^{-2} M$.
Work Step by Step
$pH = -\log [H^{+}]$
$1.36 = -\log [H^{+}]$
$[H^{+}] = 10^{-1.36}$
$= 4.37 \times 10^{-2} M$
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