The following information is given for ether, C2H5OC2H5, at 1atm: boiling point = 34.6 °C Hvap(34.6 °C) = 26.5 kJ/mol specific heat liquid = 2.32 J/g°C /At a pressure of 1 atm, what is H in kJ for the process of condensing a 22.5 g sample of gaseous ether at its normal boiling point of 34.6 °C.

The heat is  

Explanation:

From the question we are told that

   The pressure is  

    The boiling point is  

     The heat of vaporization at 34°C is  =

       The specific heat of the liquid is

      The  mass is  

  The no of moles of the sample of  is given as

    The  Molar mass for  is a value =

Substituting the value into the above equation

      The heat H is mathematically as

The negative sign show that the heat is for condensing

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.