Write the balanced molecular equation for the reaction of sodium metabisulfite (Na2S2O5) with water to produce sodium bisulfite (NaHSO3) and then write the net ionic equation for this reaction. Why is sodium bisulfite prepared using this method?

Respuesta :

Answer:

Balanced molecular reaction

Na2S2O5 + H2O ----> 2NaHSO3

Net ionic reaction

(S2O5)^(2-) + H2O ----> 2((HSO3)^(1-))

Explanation:

The sodium bisulfite compound is produced in this manner because Sodium metabisulfite has better preservative properties. It is more stable compared to sodium bisulfite and readily dissolves in water to give the required sodium bisulfite.

Sodium bisulfite sold in the market contains sodium metabisulfite as it is the more stable one of the pair.

And of all the ways of preparing the compound, this is the cheapest and easiest one.

Answer: check explanation.

Explanation:

The balanced molecular equation for the reaction of sodium metabisulfite (Na2S2O5) with water to produce sodium bisulfite (NaHSO3) is given below;

Na2S2O5 + H2O --------> 2NaHSO3.

Therefore, the net ionic equation for this reaction is given below;

S2O5^2- + H2O ------> 2HSO3^-1.

S2O5^2- + H+ ------------> 2HSO3^-1

=====> Why is sodium bisulfite prepared using this method?

sodium bisulfite is prepared using this method because of the following reasons;

(1). It is the most easy way of synthesisizing/producing sodium bisulfite (NaHSO3).

(2). In order to produce sodium bisulfite (NaHSO3) through this method, it does not require high cost,that is to say that it is financial friendly.

(3). Because of high preservative properties of sodium metabisulfite (Na2S2O5).

(4). It reacts with water with ease to produce sodium bisulfite (NaHSO3).