The concentration of OH- ions in a 0.050 M HNO3 solution is
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HNO
3
is a strong acid and completely dissociates in aqueous solution to give H
+
.
Number of moles of H
+
=
1000mL/L
50mL
×0.10=0.005 moles.
Total volume of the solution =500mL=0.500L.
(because 1 L = 1000 mL)
The hydrogen ion concentration [H
+
]=
0.500
0.005
=0.010M.
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