- #1
Kqwert
- 160
- 3
- Homework Statement
- What will the temperature be if 1 mole NaOH (aq) and 1 mole HCl (aq) are mixed when the total volume of the solutions are 1 L and both solutions were at 25 °C prior to the mixing?
- Relevant Equations
- .
I have a couple of questions related to this task.
The reaction that I proposed was this:
NaOH(aq) + HCl(aq) <--> Na+ + Cl- + H2O (l)
where as the solution manual have this net reaction, as nothing will happen with the Na+ and Cl- ions:
H+ + OH- <--> H2O.
I assume these reactions will yield the same deltaH value? If that is true, Is deltaH(for example) for deltaH(NaOH(aq)) = deltaH(Na+(aq))+deltaH(Cl-(aq)) ?
Secondly, if we go from the reaction proposed by the solution manual. How can 1 mole of H+ and OH- yield 55.6 moles of water (1 L)? (I thought it would just yield 1 mole H2O). Is it due to the rest of the water in the solution?
The reaction that I proposed was this:
NaOH(aq) + HCl(aq) <--> Na+ + Cl- + H2O (l)
where as the solution manual have this net reaction, as nothing will happen with the Na+ and Cl- ions:
H+ + OH- <--> H2O.
I assume these reactions will yield the same deltaH value? If that is true, Is deltaH(for example) for deltaH(NaOH(aq)) = deltaH(Na+(aq))+deltaH(Cl-(aq)) ?
Secondly, if we go from the reaction proposed by the solution manual. How can 1 mole of H+ and OH- yield 55.6 moles of water (1 L)? (I thought it would just yield 1 mole H2O). Is it due to the rest of the water in the solution?