1.27moles of K3PO4 can be formed.
One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.
It’s a covalent is bond where atoms share an electron on the outer most electron shell orbit.
A conceptual definition tells you what the concept means, what your constructs are by explaining how they are related to other constructs, while an operational definition only tells you how to measure it.