What happens when iron chloride is mixed with water then sodium carbonate?

Answer 1

Solutions of iron(III) chloride and sodium carbonate will react in a double replacement reaction to produce aqueous sodium chloride and an iron carbonate precipitate, which will collect in the bottom of whatever you're mixing them in. Here's the formula:

2FeCl3(aq) + 3Na2CO3(aq) --> 6NaCl(aq) + Fe2(CO3)3(s).

Let is settle for a few hours and you'll have clear salt water up top and a reddish-brown mud at the bottom.

Answer 2

When iron chloride is mixed with water, it forms a yellow solution due to the formation of a complex involving iron and water molecules. When sodium carbonate is added to this solution, a precipitation reaction occurs, resulting in the formation of a dark green solid called iron(II) carbonate and sodium chloride solution.