3. Calculate the alkalinity, total hardness, carbonate hardness and non carbonate hardness for the following water in mg/L as CaCO3. (3 marks) Ca2+=94mg/L,Mg2+=28mg/L,Na+=14mg/L,K+=31mg/L,HCO3=135mg/L,SO42 =134mg/L,.Cl=92mg/L,pH=7.8 Draw bar chart for bonus only (1 mark)