Some Basic Concepts Of Chemistry Question 194
Question: The number of gram atoms of oxygen present in 0.3 gram mole of $ {{(COOH)}_2}.2H _2O $ is
Options:
A) 0.6
B) 1.8
C) 1.2
D) 3.6
Show Answer
Answer:
Correct Answer: B
Solution:
$ \because $ 1mole $ {{(COOH)}_2}\ .\ 2H _2O $ has 96gm oxygen
$ \therefore $ 0.3 mole $ {{(COOH)}_2}\ .\ 2H _2O $ has $ 96\times 0.3=28.8gm $
$ \therefore $ No. of gram atoms of oxygen $ =\frac{28.8}{16}=1.8 $ .
