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Dominik [7]
3 years ago
10

A solution of iron(III) nitrate, Fe(NO3)3, was mixed with a solution of potassium carbonate, K2CO3. A precipitate was formed. Wh

at is the chemical formula of the precipitate?
Chemistry
1 answer:
den301095 [7]3 years ago
7 0

Answer:

Chemical formula of the precipitate is Fe(OH)₃

Explanation:

Fe(NO₃)₃ and K₂CO₃ are strong electrolytes and completely dissociates in water. Carbonate ions is a weak base and combines with water to form hydroxide ions (OH⁻), as follows

CO₃²⁻ +  H₂O <---------------->  HCO₃⁻ + OH⁻

Ferric, Fe (III), combines with these hydroxide ions to form insoluble precipitates. Fe(OH)₃ is only partially soluble i.e., it does not completely dissociate in water. When the solutions of Fe(NO₃)₃ and K₂CO₃ are mixed together, Fe(OH)₃ precipitates out due to the strong electrostatic attraction between Fe (III) and hydroxide ions.  

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