Answer :
The identity of the metal is lead (Pb).
What is metal?
A substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions (cations) are called metals.
ω(O) =22.24% ÷ 100%.
ω(O) = 0.2224; mass percentage of oxygen in the oxide.
If we take 100 grams of compound:
1) m(O) = ω(O) * 100 g.
m(O) = 0.2224 * 100 g.
m(O) =22.24 g; mass of oxygen in the oxide.
n(O) = m(O) ÷ M(O).
n(O) = 22.24g ÷ 16 g/mol,
n(O) = 1.39 mol; amount of oxygen.
2) m(M) = 100 g - 22.24 g.
m(M) = 77.76g; mass of metal in the oxide.
n(O) = n(M) = 77.76 mol.
M(M) = m(M) ÷ n(M).
M(M) = 77.76 g ÷ 1.39 mol.
M(M) =55.94 g/mol; molar mass of the metal.
Therefore, The identity of the metal is lead (Pb)
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