I need help with the same thing
Ionic bond is a type of bond in which one or more atoms are transferred to another atom which results to two ions with opposite charge. They attract each other.
The atom of another element is removed and then gained by another element which produces a noble gas electron configuration.
Covalent bond is a type of bond in which a pair or more electrons are being shared by the atoms of two elements.
Because of this, the molecules become stable by sharing the electrons thus creating a noble gas configuration for each of the atom.
The correct answer is 10.86 moles.
It is a stoichiometry based problem,
One can solve this by just knowing the balanced chemical equation. The reaction where PbO2 is used and water is generated is:
Pb + PbO₂ + 2H₂SO₄ → 2PbSO₄ + 2H₂O
The mentioned reaction is witnessed in the lead storage battery.
Therefore, here as per the balanced equation one mole of PbO₂ is consumed providing two moles of water. So, for 5.43 moles of PbO₂, we will get,
2 × 5.43 moles of water = 10.86 moles.