Answer :

Final answer:

To convert 10.0 mEq of Ca2+ to grams, first convert mEq to equivalents, then multiply by the equivalent weight of calcium. The result is 0.2004 grams.

Explanation:

The conversion of milliequivalents (mEq) of Ca2+ to grams requires an understanding of equivalents and molar mass. The molar mass of calcium is 40.08 g/mol, and since calcium has a valence of 2, the equivalent weight is 20.04 g/equiv. To convert from mEq to grams, the following steps are taken:

  1. Convert mEq to equivalents by dividing by 1000.
  2. Multiply the equivalents by the equivalent weight of calcium to get the mass in grams.

For 10.0 mEq of Ca2+:

  1. 10.0 mEq × (1 equiv/1000 mEq) = 0.0100 equiv
  2. 0.0100 equiv × 20.04 g/equiv = 0.2004 grams

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