Answered

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How many moles of S2O8 2– react for every mole of S2O3 2– that reacts? Consider the balanced chemical equations for reactions 1 and 2 to calculate the change in concentration of S2O8 2– , [S2O8 2– ], in this trial. (0.5 pts)

Sagot :

For 1 mole of S₂O₃²⁻  0.5 mole of S₂O₈²⁻  will be used.

What is a balanced Reaction ?

A reaction in which the number of atoms in reactants is equal to the number of atoms in the products is called a balanced reaction.

The reaction given in the question is

S₂O₈²⁻   + 2I⁻      ⇄   2SO₄²⁻ + I₂

I₂ + 2S₂O₃²⁻ ⇄ 2I⁻ + S₄O₆²⁻

Adding the equation will give balance equation

S₂O₈²⁻  + 2I⁻  + 2S₂O₃²⁻   ⇄ 2SO₄²⁻  + 2I⁻ + S₄O₆²⁻

So x moles of S₂O₈²⁻ require 2x of S₂O₃²⁻

for 1 mole of S₂O₃²⁻  0.5 mole of S₂O₈²⁻  will be used.

To know more about Balanced Reaction

https://brainly.com/question/14280002

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