Question #57310
what is the type of error (positive or negative) during the calculation of concentration if the following occurs:
during the volumetric analysis of Potassium hydrogen phthalate, a solution of NaOH contaminated with CO2 was used.
during the volumetric analysis of Potassium hydrogen phthalate, a solution of NaOH contaminated with CO2 was used.
Expert's answer
KHC8H4O4 + NaOH → KNaC8H4O4 + H2O
Since, NaOH contaminated with CO2, its concentration lower than supposed, you will received higher concentration value for Potassium hydrogen phthalate than real – positive error.
Since, NaOH contaminated with CO2, its concentration lower than supposed, you will received higher concentration value for Potassium hydrogen phthalate than real – positive error.
