Kaeya_23
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- Posted: Mon, 15 Oct 2007 18:01:45 +0000
alrighty. so I am doing my chemistry and I come across this problem. I cant figure it out for the life of me. Can anyone help?
The enthalpy change when a strong acid is neutralized by strong base is -56.1 kJ/mol. If 12.0 mL of 6.00 M HBr at 21.30°C is mixed with 300. mL of 0.250 M NaOH, also at 21.30°C, what will the maximum temperature reached by the resulting solution?
[Assume that there is no heat loss to the container, that the specific heat of the final solution is 4.18 J/g·°C, and that the density of the final solution is that of water.
1)
24.40°C
2)
24.53°C
3)
18.20°C
4)
34.25°C
5)
101.8°C
If your on a role I need help with this one to -_-
The heat of solution of ammonium nitrate is 26.2 kJ/mol. If a 5.368 g sample of NH4NO3 is added to 40.0 mL of water in a calorimeter at 23.5°C, what is the minimum temperature reached by the solution?
[specific heat of water = 4.18 J/g·°C; heat capacity of the calorimeter = 650. J/°C
1)
21.4°C
2)
20.8°C
3)
25.6°C
4)
-7.7°C
5)
14.3°C
The enthalpy change when a strong acid is neutralized by strong base is -56.1 kJ/mol. If 12.0 mL of 6.00 M HBr at 21.30°C is mixed with 300. mL of 0.250 M NaOH, also at 21.30°C, what will the maximum temperature reached by the resulting solution?
[Assume that there is no heat loss to the container, that the specific heat of the final solution is 4.18 J/g·°C, and that the density of the final solution is that of water.
1)
24.40°C
2)
24.53°C
3)
18.20°C
4)
34.25°C
5)
101.8°C
If your on a role I need help with this one to -_-
The heat of solution of ammonium nitrate is 26.2 kJ/mol. If a 5.368 g sample of NH4NO3 is added to 40.0 mL of water in a calorimeter at 23.5°C, what is the minimum temperature reached by the solution?
[specific heat of water = 4.18 J/g·°C; heat capacity of the calorimeter = 650. J/°C
1)
21.4°C
2)
20.8°C
3)
25.6°C
4)
-7.7°C
5)
14.3°C
