Question

The number of oxygen atoms present in 1 mole of oxalic acid dihydrate is

• A. $6\times 10^{23}$
• B. $6.022\times 10^{34}$
• C. $7.22\times 10^{23}$
• D. $36.13\times 10^{23}$

Answer 1

Answer: (D)

One molecule of oxalic acid dihydrate $(COOH{)}_2\cdot 2H_{2}O$ contains $6$ oxygen atoms.
Number of oxygen atoms in $1$ mole $=6\times 6.023\times 10^{23}$
$=36.13\times 10^{23}$ atoms