Question

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

Answer 1

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-- ?

Step-by-step 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=(0.08L* 1.5M)/(0.05L) \\=>C=2.4M`

Answer:

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