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(Solved): Table 2: Solute concentrations in water sample 1. a. What are the concentrations of H+ and ...



Table 1: Physicochemical parameters of water sample collected

Table 2: Solute concentrations in water sample

\begin{tabular}{l|l|l|l|l|l} 
Solute & Concentration \( (\mathrm{mg} / \mathrm{L}) \) & Atomic \( \mathrm{wt} .(\mathrm{g}) \

1. a. What are the concentrations of H+ and OH- given the pH? Show as a log10 format. 

b. Given the pH and alkalinity values, what is the concentration of HCO3? (Bicarbonate alkalinity as HCO3- (mg/L) = 1.22*bicarbonate alkalinity as CaCO3 (mg/L))

Table 1: Physicochemical parameters of water sample collected \begin{tabular}{l|l|l|l|l|l} Solute & Concentration \( (\mathrm{mg} / \mathrm{L}) \) & Atomic \( \mathrm{wt} .(\mathrm{g}) \) & Molarity \( (\mathrm{mmol} / \mathrm{L}) \) & Valence \( ( \) charge \( ) \) & Milliequivalents per liter \( (\mathrm{meq} / \mathrm{L}) \) \\ \hline \end{tabular} Cations \begin{tabular}{|l|l|l|l|l|l|l|} \hline \( \mathrm{Ca} \) & \( 92.0 \) & & & & \\ \hline \( \mathrm{Mg} \) & \( 34.0 \) & & & & \\ \hline \( \mathrm{Na} \) & \( 8.2 \) & & & & \\ \hline \( \mathrm{K} \) & \( 1.4 \) & & & & \\ \hline \( \mathrm{Fe} \) (III) & \( 0.1 \) & & & & \\ \hline Anions & & & & \\ \hline \( \mathrm{HCO}_{3} \) & \( ? \) & & & & \\ \hline \( \mathrm{SO}_{4} \) & \( 84.0 \) & & & & \\ \hline \( \mathrm{Cl}^{-2} \) & \( 9.6 \) & & & & \\ \hline \( \mathrm{NO}_{3} \) (as N) & \( 13.0 \) & & & & \\ \hline \end{tabular}


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a) pH = - log10 [H+] given pH = 7.2 then 7.2 = - log10 [H+] [H+] =10-7.2 [H+][OH-]
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