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27 September, 17:07

A titration was performed in a lab situation. H2SO4 was titrated with NaOH. The following data was collected: mL of NaOH used = 43.2 mL concentration NaOH = 0.15 M mL H2SO4 = 20.5 mL Notice that H2SO4 releases 2 H + per mole. What is the concentration of H2SO4? 0.036 M 0.16 M 0.63 M 6.3 M

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  1. 27 September, 17:19
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    For the titration we use the equation,

    M₁V₁ = M₂V₂

    where M is molarity and V is volume. Substituting the known values,

    (0.15 M) (43.2 mL) = (2) (M₂) (20.5 mL)

    We multiply the right term by 2 because of the number of H + in H2SO4. Calculating for M₂ will give us 0.158 M. Thus, the answer is approximately 0.16M.
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