2 Fe(NO3)3 + 3 (NH4)2CO3 = Fe2(CO3)3(s) + 6 NH4NO3
Moles of Fe(NO3)3 = molarity * volume ( in L )
= 0.816 * ( 613.7*10^-3)
= 0.501
Moles of Fe2(CO3)3 = 1/2 * moles of Fe(NO3)3
= 1/2 * 0.501
= 0.2505
Mass of Fe2(CO3)3 = moles * molar mass
= 0.2505 * 292
= 73.146 grams
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