A solution contain 43mEq/L of Cl- and 11 mEq/L of HPO4*2-. If the only cation in the solution is Na+ what is the Na+ concentration if mEq/L?

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1 answer

You need 43 mEq/L for NaCl and 11 mEq/L of NaHPO4^- plus another 11 mEq/L for Na2HPO4. Total is 43 + 11 + 11.