What is the enthalpy change if 6.31g N2(s) and 1.96g H2(g) react to produce NH3(g) ?

blahh

New member
the standard molar enthalpy of formation NH3(g) is -45.9kJ/mol. What is the enthalpy change if 6.31g N2(s) and 1.96g (g) react to produce NH3(g) ?
 
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