Answer:
v = 500 milliliters
Explanation:
[tex]HNO_{3}[/tex] ⇒ [tex]H^{+} + NO^{3-}[/tex]
[tex]KOH[/tex] ⇒ [tex]K^{+} + OH^{-}[/tex]
1 [tex]H^{+}[/tex] to 1 [tex]OH^{-}[/tex]
[tex]\frac{0,5}{V} = \frac{0,1}{100} \\\\v * 0,1 = 50\\v = 500 milliliters[/tex]