Some Basic Concepts Of Chemistry Question 55
Question: What is the empirical formula of vanadium oxide, If 2.74 g of the metal oxide contains 1.53 g of metal?
Options:
A) $ V _2O _3 $
B) $ VO $
C) $ V _2O _5 $
D) $ V _2O _7 $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Mass of oxide = Mass of metal + Mass of oxygen $ 2.74=1.53+W _{Oxygen}\Rightarrow W _{Oxygen}=1.21g $ Moles of $ V=\frac{1.53}{51}=0.03 $ Moles of $ O=\frac{1.21}{16}=0.075 $
$ {V _{0.03}},{O _{0.075}} $
$ V{O _{2.5}}\Rightarrow V _2O _5 $
