A gas is collected over the water at $25°C.$ The total pressure of moist gas was $735 \,mm$ of mercury. If the aqueous vapour pressure at $25°C$ is $23.8\, mm.$ Then the pressure of dry gas is..... $mm$
  • A$760$
  • B$758.8$
  • C$710.8$
  • D$711.2$
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