The correct option is D 0.0005 moles
6.022×1018 H3PO4 molecules =6.022 × 10186.022 × 1023 moles =10−5 moles ofH3PO4
The number of electrons in one molecule of H3PO4=3+15+(8×4)=50electrons.
So, the number of moles of electrons in one mole of H3PO4=50 moles.
Therefore, the total number of moles of electrons in 10−5 moles of H3PO4 will be
=50×10−5 moles = 0.0005 moles