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Q1. Using a suitable method for finding a root of a nonlinear equation, obtain the pH value with the help of the given set of equations. Justify the method selected to solve this problem. [10 Marks K 106 (H*][HCO3] (1) co, K = ht|coa (HCO3) (2) Kw [H+][OH-] (3) 0 = [HCO3] + 2[C03-] - [H+] + [OH-] = (4) pH = -log10[H] (5) [H+]: Molar concentration of hydrogen ions [HCO3): Molar concentration of bicarbonate ions [CO3-): Molar concentration of carbonate ions [OH-]: Molar concentration of hydroxyl ions KH: Henry'sconstant KH : = 10-146 K1, K2, Kw: Equillibrium coefficients Ki = 10-6.3 K2 = 10-10.3 Kw = 10-14 Pcoz: Partial pressure of CO2 in the atmosphere (ppm) = 310 pH for this system usually ranges between 4 to 8 and the pH measuring device has a precision of only up to one place of decimal