An industrial chemist studying bleaching and sterilizing prepares several hypochlorite buffers. find the ph of the following buffers.
(
a. 0.090 m hclo and 0.090 m naclo (
b. 0.090 m hclo and 0.135 m naclo (
c. 0.135 m hclo and 0.090 m naclo (
d. one liter of the solution in part (
a. after 0.0050 mol naoh has been added.
i only need with (
d. i got 8.07, but that was incorrect

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added