Example Question - 1

An error is the difference between the experimental value and the accepted or correct value.Accuracy is how close values are to the accepted or correct value.Precision is a measure of how close values are to each other.
In a displacement reaction 6g of Zn (M_r = 65.4gmol^-1) was added to a 100cm³ solution of copper (II) sulfate (M_r = 159.6gmol^-1). The concentration of copper(II) sulfate was 162.8gdm^-3.Zn(s) + CuSO₄(aq) → ZnSO₄(aq) + Cu (s)
Find the concentration of copper sulfate remaining in the solution in moldm^-3.