Redox and Equivalent ConceptHard
Question
The oxide of a metal contains 52.91% of the metal. If the formula of the metal oxide is M2O3, then what is the atomic mass of the metal?
Options
A.8.99
B.26.96
C.17.97
D.53.93
Solution
neq metal = neq oxygen
Or $\frac{52.91}{E} = \frac{47.09}{8} \Rightarrow E = 8.99$
∴ Atomic mass of metal = $8.99 \times 3 = 26.97$
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