What is the formula
lead (ii) oxide

The formula for Lead(ll) Oxide is PbO.

Explanation:

The symbol for Lead is Pb.

The symbol for Oxygen is O.

Given,Oxidation state of Pb = +2

We know,

Oxidation state of Oxygen in all Oxides is the same and is equal to -2,

Let the no. of Pb atoms in the oxide = x;

no.of Oxygen atoms = y;

Concept:

Sum of oxidation states of all atoms in any compound is equal to zero.

Applying concept,we get,

x(+2) + y(-2) = 0

x(+2) = y(+2)

Therefore, x = y

and, x : y = 1:1 ;

Therefore the empirical and the correct formula of the oxide is ,which is .

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b