1 mg of H+ will be equal to_________?
Correct answer: B. All of the above
- A. 20 mg of ca2+
- B. All of the above
- C. 9 mg of Al3+
- D. 12 mg of Mg2+
Explanation
Equivalent amounts are calculated using atomic or molecular mass divided by valency: Ca²⁺ is about 20 mg, Mg²⁺ about 12 mg, and Al³⁺ about 9 mg per 1 mg of H⁺ equivalent. Therefore all three comparisons are correct.
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