27.5 mL of a 0.235 M potassium hydroxide solution is required to completely react with 35.0 mL of a sulfuric acid solution. Provide the balanced chemical equation for this reaction and determine the concentration of the sulfuric acid solution.

The balanced equation is and the concentration of the sulfuric acid solution is 0.184 M.

Explanation:

Given: = 27.5 mL,       = 0.235 M

= 35.0 mL,             = ?

Formula used to calculate the concentration of the sulfuric acid solution is as follows.

Substitute the values into above formula as follows.

The given chemical equation for given reaction is as follows.

Number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

To balance this equation, multiply KOH by 2 on reactant side and multiply by 2. Hence, the equation can be rewritten as follows.

Now, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

Since, there are same number of atoms of both reactant and products. Therefore, the equation is now balanced.

Thus, we can conclude that the balanced equation is and the concentration of the sulfuric acid solution is 0.184 M.

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