Answer:
the metal is Cadmium (Cd), the oxide is Cadmium oxide (CdO)
Explanation:
<u>Step 1:</u> The equation
mMO ⇔ mM + mO
<u>Step 2: </u>calculating mass
Given is the mass of the metaloxide (61.16g) and the mass of the metal, since the oxygen was removed (53.54g)
The mass of the oxide can be calculate by:
mO = mMO - mM
mO = 61.16 - 53.54 = 7.62g
<u>Step 3:</u> Calculating moles oxide
mole = mass/ molar mass
mole = 7.62g / 16g/mole = 0.47625 mole
<u>Step 4:</u> moles metal
For 1 mole O2 we will have 1 mole metal
so we have 0.47625 moles of metal
<u>Step 5:</u> Calculating molar mass of metal
Molar mass = mass / moles
Molar mass = 53.54g / 0.47625 mole
Molar mass = 112.41 g/mole
If we look at the periodic table ⇒ Cadmium has a molar mas of 112.41 g/mole
So the metal is Cadmium (Cd), the oxide is Cadmium oxide (CdO)
