Answer :

0.30 moles of FeCl3 is equivalent to 300 milliequivalents (meq). We need to determine the equivalent weight of FeCl3 and then convert moles to milliequivalents.

To calculate the number of milliequivalents (meq) in 0.30 moles of FeCl3, we need to determine the equivalent weight of FeCl3 and then convert moles to milliequivalents.

The equivalent weight represents the number of moles of a substance required to react with or replace one mole of hydrogen ions (H+). For FeCl3, the equivalent weight is equal to its molar mass divided by its total positive charge.

The molar mass of FeCl3 can be calculated as follows:

Molar mass = (atomic mass of Fe) + 3 * (atomic mass of Cl)

= (55.845 g/mol) + 3 * (35.453 g/mol)

= 162.211 g/mol

Since FeCl3 has a charge of 3+ (Fe3+), the equivalent weight will be:

Equivalent weight = Molar mass / Total charge

= 162.211 g/mol / 3

= 54.070 g/equivalent

To convert moles to milliequivalents, we use the conversion factor: 1 equivalent = 1000 milliequivalents.

Milliequivalents = Moles * (1000 meq / 1 equivalent)

= 0.30 moles * (1000 meq / 1 equivalent)

= 300 meq

Therefore, 0.30 moles of FeCl3 is equivalent to 300 milliequivalents (meq).

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