Post a New Question

ap chemistry

posted by on .

A sample of KOH is dissolved into 100.0 grams of water in a coffee cup calorimeter. if the dissolution produces 6.45 kJ of heat and the temperature change is 25.4 degrees celcius to 40.0 degrees celcius, how much KOH (in grams) is added to the water? (the specific heat of the solution is 4.20 J/g degree celcius.)

  • ap chemistry - ,

    q = mass x specific heat x (Tfinal-Tinitial)
    q = 6450 joules.
    mass = only unknown
    specific heat = 4.20 J/g
    Tfinal = 40.0
    Tinitial= 25.4
    Note the correct spelling of celsius.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question