underline ( )Na_(2)(CO_(3))+underline ( )Fe(OH)_(3)arrow underline ( )Na(OH)+underline ( )Fe_(2)(CO_(3))_(3) 4. How many moles of Na_(2)(CO_(3)) are needed to react with 25.5 g of Fe(OH)_(3)

To determine the number of moles of \( Na_2(CO_3) \) needed to react with 25.5 g of \( Fe(OH)_3 \), we need to follow these steps:1. **Write the balanced chemical equation:** 2. **Calculate the molar mass of \( Fe(OH)_3 \):** - Molar mass of Fe: - Molar mass of O: - Molar mass of H: 3. **Convert the mass of \( Fe(OH)_3 \) to moles:** 4. **Use the stoichiometry of the balanced equation to find the moles of \( Na_2(CO_3) \):** According to the balanced equation, 2 moles of \( Fe(OH)_3 \) react with 3 moles of \( Na_2(CO_3) \). Therefore, approximately 0.357 moles of \( Na_2(CO_3) \) are needed to react with 25.5 g of \( Fe(OH)_3 \).