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Consider the reaction:

2HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2H2O(l) ΔH = -118 kJ

Calculate the heat when 100.0 mL of 0.449 M HCl is mixed with 300.0 mL of 0.164 M Ba(OH)2.

How many kJ of heat is evolved?

2007-12-08 06:54:33 · 1 answers · asked by Anonymous in Science & Mathematics Chemistry

1 answers

1. Calculate how many moles of reactant are in each solution.

2. Determine which one will be totally consumed by comparing the moles with the coefficients in the equation.

3. Take the original equation and multiply every term by the factor that gives the moles of the one totally consumed.

4. Multiply the "-118 kJ" by that same factor.

2007-12-08 07:38:13 · answer #1 · answered by Tim C 7 · 0 0

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