1. Calculate the volume, in liters, of a 7.5 mol H2S(g) at 20 degrees C and 2.58 atm. Please show

your work 

2.According to the Bronsted-Lowry definition, which chemical in the following reaction is the acid?    OH^– + HCO₃^– à  CO₃^2-
+ H₂O

      a. OH^–

      b. HCO₃^–

      c. CO₃^2-

      d. H₂O

      e. none of the above

3. According to the Bronsted-Lowry definition, which chemical in the following reaction is the base?   CO₃^2-
+ H₂O -> OH^– + HCO₃^–

       a. OH^–

       b. HCO₃^–
       c. CO₃^2-
       d. H₂O

       e. none of the above

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