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A hydrochloric acid spill occurred on Lucky Bear's property. The HAZMAT team was directed to use 50-mL of 1 M NaOH for every 50-mL of 1 M HCl spilled to neutralize the acid spill. A temperature increase of 6.7oC results from the reaction as described.
HCl(aq) + NaOH(aq) à H2O(l) + NaCl(aq)
a. Is this reaction endothermic or exothermic?
b. Given that the density of water is 1.00 g/mL and that HCl and NaOH are aqueous solutions, calculate the change in heat expected for the surroundings.
d. Calculate the moles of water produced by this reaction (limiting reagent problem).
e. Calculate the enthalpy change associated with this reaction.
6. Write the balanced chemical equation and the net ionic equation for the following two reactions. a. HCl(aq) + NaOH(aq) à b. H2SO4(aq) + NaOH(aq) à
c. Would you expect the two reactions in (a) and (b) to have the same enthalpy change? Explain.
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