One beaker contains 26 mL of 1.60 M HCl, and a second beaker contains 53 mL of 0.40 M NaOH. Both solutions were initially at 20 °C. We pour both beakers into a large insulated container which contains 9 g of ice, initially at -60 °C. Calculate the final temperature of the resulting solution. Note that the heat of neutralization is -57.3 kJ/mol.

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