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A dilute solution of hydrochloric acid with a mass of 606.80 g and containing 0.30015 mol of HCl was exactly neutralized in a calorimeter by the sodium hydroxide in 612.93 g of a comparably dilute solution. The temperature increased from 16.222 to 19.624degree (C). The specific heat of the HCl solution was 4.031 J ·g-1 · °C-1; that of the NaOH solution was 4.046 J ·g-1 · °C-1. The heat capacity of the calorimeter was 77.99 J · °C-1.
a) Write the balance equation for the reaction ( include states)
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