Calculate the percentage of phosphorus in the fertiliser superphosphate Ca(H_(2)PO_(2))_(2) (H = 1, 0 = 16, P = 31, Ca = 40).
Calculate the percentage of phosphorus in the fertiliser superphosphate Ca(H_(2)PO_(2))_(2) (H = 1, 0 = 16, P = 31, Ca = 40).