Analysis of a water sample revealed that the sample contains the following species.
$\mathrm{CO}_{3}^{2-}, \mathrm{Na}^{+}, \mathrm{H}^{+}, \mathrm{PO}_{4}^{3-}, \mathrm{Al}^{3+}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{Cl}^{-}, \mathrm{Ca}^{2+}, \mathrm{Mg}^{2+}, \mathrm{HCO}_{3}^{-}, \mathrm{Fe}^{2+}, \mathrm{OH}^{-}$
Concentrations of which of the species will be required to compute alkalinity?
(A) $\mathrm{CO}_{3}^{2-}, \mathrm{H}^{+}, \mathrm{HCO}_{3}^{-}, \mathrm{OH}^{-}$
(B) $\mathrm{CO}_{3}^{2-}, \mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{HCO}_{3}^{-}$
(C) $\mathrm{CO}_{3}^{2-}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{HCO}_{3}^{-}, \mathrm{OH}^{-}$
(D) $\mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{HCO}_{3}^{-}, \mathrm{OH}^{-}$

Question ID - 157044 | SaraNextGen Top Answer

Analysis of a water sample revealed that the sample contains the following species.
$\mathrm{CO}_{3}^{2-}, \mathrm{Na}^{+}, \mathrm{H}^{+}, \mathrm{PO}_{4}^{3-}, \mathrm{Al}^{3+}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{Cl}^{-}, \mathrm{Ca}^{2+}, \mathrm{Mg}^{2+}, \mathrm{HCO}_{3}^{-}, \mathrm{Fe}^{2+}, \mathrm{OH}^{-}$
Concentrations of which of the species will be required to compute alkalinity?
(A) $\mathrm{CO}_{3}^{2-}, \mathrm{H}^{+}, \mathrm{HCO}_{3}^{-}, \mathrm{OH}^{-}$
(B) $\mathrm{CO}_{3}^{2-}, \mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{HCO}_{3}^{-}$
(C) $\mathrm{CO}_{3}^{2-}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{HCO}_{3}^{-}, \mathrm{OH}^{-}$
(D) $\mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{HCO}_{3}^{-}, \mathrm{OH}^{-}$