Reaction 1: NaOH(s) ® Na+(aq) + OH–(aq) From your graph, provide the following: ΔT = ? °C qreaction = ? J = ? Kj nNa

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Reaction 1:
NaOH(s) ® Na+(aq) + OH–(aq)
From your graph, provide the following:
ΔT = ? °C
qreaction = ? J = ? Kj
nNaOH = ? mol
ΔH° = ? J/mol = ? kJ/mol
Now you should have all you need to fill the following
table:
Value
Mass solution msol (g)
Mass NaOH (g)
ΔT (K) from graph
ΔH° (kJ)
Determination of Standard Enthalpy of Solution of NaOH in
Water
Mass of NaOH: _____1.98_____________ g
Mass of reaction mixture:
_____58.3_____________ g
Mass of cup (weight of the calorimeter before adding the
water ): 6.3g
Time (min)
Temperature (°C)
1
20.2
2
20.2
3
20.2
4
20.2
5
20.2
6
23.5
7
26.1
8
28.5
9
29.3
10
29.3
11
28.0
12
27.9
13
27.7
14
27.5
15
27.4
16
26.3