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mg = (mEq • atomic, molecular or formula weight) / valence
Atomic weight of potassium [K] is 39.0983
Atomic weight of chlorine [Cl] is 35.453
The molecular weight of potassium chloride [KCl] is sum of the atomic weights above: 74.551 (rounded)
The valence of potassium chloride is 1
Thus:
(20mEq potassium chloride • 74.551) / 1 = 1491.0 mg potassium chloride
Which breaks down to 781.960 mg of elemental potassium [K], and 709.060 mg of elemental chlorine [Cl].
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20mg=20mEq
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This dangerously wrong. Check drugs.com.
20 MEQ is about 1500 mg.
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Numerical answers to this question are all nonsense. A number would depend on the element, molecule or formula in question, and none was specified. The correct answer to this question (as posed) is:
mg = (mEq • atomic, molecular or formula weight) / valence
The first answer above is correct for hydrogen; the second is about right for potassium chloride. For a more detailed answer for potassium chloride, see the related question.
780 mg 1491.0 mg of potassium chloride (which contains 781.960 mg of elemental potassium)
Read more: How_many_milligrams_is_20_meq_of_potassium_chloride
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