As a consultant, you have been tasked with determining whether the given borehole water supply is suitable for domestic use, in terms of hardness. As such, you carry out a chemical analysis on the sample taken to find that the concentrations (g/m3) of Ca2+, Na+, Fe2+, HCO3 - and CO3 2- were respectively 105, 85, 7, 79 and 6,0. Now determine i) The total hardness of the water, ii) pH of the sample. iii) The alkalinity of the water in mg CaCO3 iv) iv) iv) Non-carbon hardness v) Finally, which water hardness classification category does the water sample belong to? Assume K = 10-10.3 = [H+] [CO3 2-]/ [HCO3 -]