Answer:
Explanation
Solution:- Total volume of the solution = 5.0 mL + 50.0 mL = 100.0 mL
Density of solution is same as of water that is 1.0 g per mL. So, the mass of solution, m =
m = 100.0 g
change in temperature, = 26.3 - 20.2 = 6.1 degree C
specific heat, s of water is 4.184 J per g per degree C.
where q is the heat energy. let's plug in the values in the equation:
q = 2552.24 J
energy of calorimeter = change in temperature*heat capacity of calorimeter
energy of calorimeter =
= 73.81 J
Total heat = 2552.24 J + 73.81 J = 2626.05 J
Let's convert it to kJ and for this we divide by 1000 since, 1000 J = 1 kJ
= 2.626 kJ
0.05 moles of copper sulfate are used so the of the reaction =
=
Since, there is an increase in temperature, the heat is released and so the sign of will be negative.
Hence, = 52.52 jk
