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Determine what volume of 3.00M HCl in liters is required to react completely with 0.500L of 0.200M Na2CO3?

A gas sample in a cylindrical chamber with a movable piston occupied a 4.626 liters of  volume when the temperature was 27.2 °C.  and pressure was 0.983 atm The pressure was readjusted to 1.388 atm by moving the piston but the temperature remained constant throughout?. What was the volume occupied by the sample under the new conditions

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