Determine a concentração de 50mL de NaOH que consumiu em sua titulação 80mL de HCl de concentração 1,5mol/L

Question

Determine a concentração de 50mL de NaOH que consumiu em sua titulação 80mL de HCl de concentração 1,5mol/L

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Khoii Minh 1 week 2021-07-22T17:22:01+00:00 1 Answers 0 views 0

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    2021-07-22T17:23:59+00:00

    Answer:

    Given the concentration of HCl is 1.5mol/L or 1.5M

    The volume of HCl required is — 80mL

    The volume of NaOH is —- 50mL

    What is the concentration of NaOH– ?

    Explanation:

    The chemical reaction between NaOH and HCl is shown below:

    NaOH(aq)+HCl(aq)-> NaCl(aq)+H2O(l)\\1mol of NaOH reacts with 1mol. of HCl.\\Number of moles =molarity * volume in L\\At the equivalence point:\\Number of moles of HCl=number of moles of NaOH\\Hence,\\0.08L* 1.5M =0.05L * C \\=>C=\frac{0.08L* 1.5M}{0.05L}  \\=>C=2.4M

    Answer:

    The concentration of NaOH required is 2.4M or 2.4mol/L.

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