derekcalhoun5483 derekcalhoun5483
  • 19-05-2018
  • Chemistry
contestada

When 1.0g of solid naoh dissolves in 10 l of water, how much heat is released?

Respuesta :

superman1987
superman1987 superman1987
  • 28-05-2018
when ΔH = -445.1 KJ/mol (given) missing in your question.

and this value is per mole NaOH.

∴ the amount of heat = ΔH / mol NaOH * (mass NaOH) (1 mol NaOH / molar mass NaOH)

by substitution:

                                   = -445.1 KJ/mol / mol NaOH * 1 g NaOH * 1molNaOH                                         /40 g NaOH

                                  = -11.1 KJ
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