The limiting molar conductivity of water is equal to

${\mathrm{\Lambda }}_{m\left(HCl\right)}^0+{\mathrm{\Lambda }}_{m\left(\mathrm{NaOH}\right)}^0-{\mathrm{\Lambda }}_{m\left(\mathrm{NaCl}\right)}^0$

${\mathrm{\Lambda }}_{m\left(\mathrm{NaCl}\right)}^0+{\mathrm{\Lambda }}_{m\left(\mathrm{NaOH}\right)}^0-{\mathrm{\Lambda }}_{m\left(HCl\right)}^0$

${\mathrm{\Lambda }}_{m\left(\mathrm{NaCl}\right)}^0+{\mathrm{\Lambda }}_{m\left(\mathrm{HCl}\right)}^0-{\mathrm{\Lambda }}_{m\left(\mathrm{NaOH}\right)}^0$

${\mathrm{\Lambda }}_{m\left(\mathrm{NaCl}\right)}^0+{\mathrm{\Lambda }}_{m\left(\mathrm{NaOH}\right)}^0+{\mathrm{\Lambda }}_{m\left(\mathrm{HCl}\right)}^0$