Solid ferric nitrate and aqueous sodium hydroxide are combined with water in a test tube. A brown to red precipitate forms in the test tube. Write a complete chemical reaction that accounts for the formation of the solid.
I bet you are seeing Iron(III)hydroxide. How did it form?
Well I got Iron(3)hydroxide as a solid and NaNo3 as aqueous.....
Not sure if that is right but that's my best guess as of right now....
Just a note to suggest you follow the guidelines better; e.g., NaNO3 instead of NaNo3. Iron(III) hydroxide and not iron(3) hydroxide.
Fe(NO3)3(aq) + 3NaOH(aq) ==> Fe(OH)3(s) + 3NaNO3(aq)
To identify the chemical reaction that forms a brown to red precipitate in a test tube when solid ferric nitrate reacts with aqueous sodium hydroxide, let's write out the chemical equation step by step:
1. First, we need to know the chemical formulas of ferric nitrate and sodium hydroxide. Ferric nitrate has the formula Fe(NO3)3, while sodium hydroxide is NaOH.
2. The equation for the reaction between ferric nitrate and sodium hydroxide can be written as follows:
Fe(NO3)3 (s) + 3NaOH (aq) → Fe(OH)3 (s) + 3NaNO3 (aq)
In this reaction, solid ferric nitrate reacts with aqueous sodium hydroxide to produce solid ferric hydroxide (Fe(OH)3) and aqueous sodium nitrate (NaNO3).
3. The brown to red precipitate that forms in the test tube is the solid ferric hydroxide (Fe(OH)3). This precipitate is typically brown or red in color.
So, the complete chemical reaction that accounts for the formation of the brown to red precipitate is:
Fe(NO3)3 (s) + 3NaOH (aq) → Fe(OH)3 (s) + 3NaNO3 (aq)