You are designing a process for a wastewater treatment facility intended to remove aqueous HCl from the

Question:

You are designing a process for a wastewater treatment facility intended to remove aqueous HCl from the input water. Several bases are being considered for use, and their costs are listed in the table below. If cost is the primary concern, which base would you recommend using? Use stoichiometric arguments to justify your answer.

Material Cost per metric ton CaCO3 $270 Ca(OH) $165 NaOH NH3 $255 $315