You use 10.0 mL of solution A, 10.0 mL of solution B, and 70.0 mL of water for your first mixture. What is the initial concentration of KIO3

Complete Question

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The  initial concentration is  

Explanation:

From the question we are told that

    The volume of solution A is  

    The concentration of A is

    The volume of solution B  is  

    The volume of water is  

Generally the law of dilution is mathematically represented as

Where   is the concentration of  the mixture

            is the volume of the mixture which is mathematically evaluated as

So  

substituting values

Note the mixture obtained is