ThermochemistryHard
Question
50.0 mL of 0.10 M HCl is mixed with 50.0 mL of 0.10 M NaOH. The solution′s temperature rises by 3.0oC. Calculate the enthalpy of neutralization per mole of HCl.
Options
A.-2.5 × 102 kJ/mole
B.-1.3 × 102 kJ/mole
C.-8.4 × 101 kJ/mole
D.-6.3 × 101 kJ/mole
Solution
Assuming density of solution is 1g/cc
and specipic heat is 4.2 J/gc
q = msᐃT = 100 × 4.2 × 3
millimoles of acid nuetralized = 5
ᐃH = - 100 × 4.2 × 3 ×
= - 2.52 × 102 kJ/mole.
and specipic heat is 4.2 J/gc
q = msᐃT = 100 × 4.2 × 3
millimoles of acid nuetralized = 5
ᐃH = - 100 × 4.2 × 3 ×
= - 2.52 × 102 kJ/mole. Create a free account to view solution
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