When 1.0 g of solid NaOH (Triangle Hsoln = - 445.1 kJ/mol) dissolves in 10 L of water, how much heat is released?

Question

Chemistry

Ozzie

9 November, 01:04

When 1.0 g of solid NaOH (Triangle Hsoln = - 445.1 kJ/mol) dissolves in 10 L of water, how much heat is released?

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Ireland Sanchez · Answer 1

The heat being released is calculated by multiplying the amount of NaOH used for making the solution. We are given a delta H that is equal to - 445.1 kJ / mol. This value is per mole NaOH. Calculation is as follows:

-445.1 kJ / mol NaOH (1.0 g NaOH) (1 mol NaOH / 40 g NaOH) = - 11.1 kJ