The percent of metal : = 46.35%
The percent of oxygen : = 53.65%
Further explanation
The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.
So the concentration of a solution can be expressed as a percent which is the ratio of solute to the solution. Can be expressed in percent of mass (m / m) or volume percent (v / v)
[tex]\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%[/tex]
Solution = Solute + Solvent
Given
8.25 g of metal
17.80 g of metal oxide
Required
The percent of metal and oxygen
Solution
mass of Oxygen :
= 17.8 g - 8.25 g
= 9.55 g
% mass of Oxygen :
= (9.55 : 17.8) x 100%
= 53.65%
% mass of metal :
= 100% - 53.65%
= 46.35%
Learn more
the mass in grams of 3.5 mol of the element gold.
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