Assume that acid rain has lowered the pH of a lake to pH 5.0 . What is the hydroxide ion concentration of this lake? 5.0 M hydroxide ion
1\times 10^(-5)mol
of hydroxide ions per liter of lake water
1\times 10^(-9)mol
of hydroxide ions per liter of lake water
5.0\times 10^(-5)mol
of hydroxide ions per liter of lake water