Bromophenol blue is another common acid-base indicator which changes color from yellow in acidic solution to blue in basic solution. the ph values for this indicator are in a range of approximately 3 to 4.6. instead of using phenolphthalein in the ch3cooh-naoh titration, if bromophenol blue was used, would the calculated molarity of acetic acid be high, low, or the same?

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