Question

Sodium sulfite reacts with iron(iii) nitrate to produce soduium sulfate and iron(ii) nitrate.A. write an unbalanced net ionic equation for this reaction B.write a balanced net ionic equation for this reaction when it takes place in the presence of excess H+ ions. C.write a balanced net ionic equation for this reaction when it takes place in the presence of excess OH-ions. Someone please help me?

Answer 1

Unbalanced :
-Na2SO3 + Fe(NO3)3 --> Na2(SO4)+Fe(NO3)2
Balanced:
-3Na2SO3 + 2Fe(NO3)3 --> 3Na2(SO4)+3Fe(NO3)2

Balanced ionic equation:
6Na+ + 3SO3 2- + 2Fe 3+ +6NO3- --> 6Na+ + 3SO4 2- + 3Fe 2+ + 6NO3 -
Balanced Net ionic equation:
3SO3 2- + 2Fe 3+ --> 3SO4 2- + 3Fe 2+