Mass of H₂O₂ = 88.778 g
<h3>Further explanation</h3>
The mole itself is the number of particles contained in a substance amounting to 6.02.10²³
Mole can also be determined if the amount of substance mass and its molar mass is known

moles of H₂O₂ = 2.61
So the mass of H₂O₂(MW=34,0147 g/mol) :

The answer is 1.98 × 10^22 iron (II) ions
Answer:
What?
Explanation:
it got mixed up or something
Answer:
In redox reactions, electrons are transferred from one species to another. If the reaction is spontaneous, energy is released, which can then be used to do useful work. To harness this energy, the reaction must be split into two separate half reactions: the oxidation and reduction reactions.