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- \textbf{Regneeksempel for bestemmelse af $[OH^-]$ under bestemmelse af $z$:}\\
- $c_{OH^-}=c_{OH_{0}^-}\cdot\frac{V_0}{V}$ \\
- $c_{OH_{0}^-}=50.0\frac{mg}{l}$\\
- $V_0=50.00 ml$\\
- $V=50.50 ml$\\
- $c_{OH^-}=50.0\frac{mg}{l}\cdot\frac{50.00 ml}{50.50 ml}=49.50\frac{mg}{l}$ \\
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