Respuesta :
Answer:
188.02 mEq. and 0.188 eq.
Explanation:
To convert grams of a substance into equivalents and milliequivalents, we first need to understand the concepts:
An equivalent (eq) is the amount of a substance that reacts with or supplies one mole of hydrogen ions (H+) in an acid-base reaction, or one mole of electrons in a redox reaction.
A milliequivalent (mEq) is one-thousandth of an equivalent.
For elements, the equivalent weight depends on the valency of the element. Iron (Fe) can have multiple valencies, but since you've written "Fe3", it suggests iron with a valency of +3 (ferric iron).
The equivalent weight of an element is calculated as its atomic weight divided by its valency. Iron (Fe) has an atomic weight of approximately 55.845 grams per mole.
Here's how you can calculate equivalents and milliequivalents for iron:
Find the equivalent weight of iron with a +3 charge: Equivalent weight of Fe = Atomic weight / Valency.
Calculate the number of equivalents: Number of equivalents = Weight of substance (in grams) / Equivalent weight.
Convert equivalents to milliequivalents by multiplying by 1000.
Let's do the math for 3.5 grams of Fe3+.
The equivalent weight of iron with a valency of +3 (Fe³⁺) is approximately 18.615 grams per equivalent.
For 3.5 grams of Fe³⁺:
The number of equivalents is approximately 0.188 eq.
The number of milliequivalents is approximately 188.02 mEq.
