Question
Asked Mar 16, 2020
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When 0.2150.215 g of sodium metal is added to an excess of hydrochloric acid, 22302230 J of heat are produced. What is the enthalpy of the reaction as written?

2Na(s)+2HCl(aq)⟶2NaCl(aq)+H2(g)2Na(s)+2HCl(aq)⟶2NaCl(aq)+H2(g)

Enthalpy of reaction:
 
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Expert Answer

Step 1

Calculate the moles of sodium metal below.

Chemistry homework question answer, step 1, image 1

Step 2

Convert 2230 J into kilojoule.

Chemistry homework question answer, step 2, image 1

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