When a 13.0-g sample of NaOH(s) dissolves in 400.0 mL of water in a coffee cup calorimeter,

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When a 13.0-g sample of NaOH(s) dissolves in 400.0 mL of water in a coffee cup calorimeter, the temperature of the water changes from 22.68C to 30.78C. Assuming that the specific heat capacity of the solution is the same as for water, calculate 

(a) The heat transfer from system to surroundings and 

(b) ΔH for the reaction

NaOH(s)  Nat(aq) + OH-(aq)

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Chemistry For Engineering Students

ISBN: 9780357026991

4th Edition

Authors: Lawrence S. Brown, Tom Holme

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