We have a sample of solution of unknown concentration. To determine the concentration, we divide the sample into three samples and titrate each sample separately with . Each sample is titrated completely and the titration data is shown below.

Sample number Volume used,

1

2

3

What was the concentration of the solution?

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General Chemistry 2

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Solve problems involving titrations

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1 Sep 2020

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You are given 5.00 mL of an H2SO4 solution of unknown concentration. You divide the 5.00-mL sample into five 1.00-mL samples and titrate each separately with 0.1000 M NaOH. In each titration, the H2SO4 is completely neutralized. The average volume of NaOH solution used to reach the endpoint is 15.3 mL. What was the concentration of H2SO4 in the 5.00-mL sample?

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Please provide the steps for the solution. I am particularly confused with what I'm supposed to subtract the total moles of HCl with. I think the concentration of the solution can be determined via M1V1=M2V2 but not sure