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(a) A solution containing hazardous waste is charged into a storage tank and subjected to a chemical treatment that decomposes the waste to harmless products. The concentration of the decomposing waste. C, has been reported to vary with time, t, according to the formula C=1/(a+bt) When sufficient time has elapsed for the concentration to drop to 0.01g/L, the conitents of the tank are discharged into a river that passes by the plant. The following data are taken for C and t: (i) If the given formula is correct, what plot would yield a straight line that would enable you to determine the parameters a and b ? (ii) Estimate a and b using the method of least squares. ( 1 marks) (iii) Using the results of part (ii), estimate the initial concentration of the waste in the timarks) time required for C to reach its discharge level. Note that in the simple. linear lest squares analysis for a straight line ( 1 mark) y(x)=a0+a1x the construts a0 and a1 are given by a0N+a1xia0xi+aixi=yi=xiyi