Which of the following contains greatest number of N atoms?

Options

A. `22.4 L` nitrogen gas at STP
B. `500mL" of "2.00M NH_(3)`
C. `1.00" mol of "NH_(4)Cl`
D. `6.02xx 10^(23)" molecules of "NO_(2)`

Answer

A

Explanation

A. `22.4L N_(2)` gas at `STP= 1 mol N_(2)= N_(0)` molecules of `N_(2)= 2N_(0)` atoms of N
B. `(500xx2)/(1000)= 1 mol" of "NH_(3)= N_(0)` molecules of `NH_(3)= N_(0)` atoms of N
C. `1 mol " of "NH_(4)Cl= N_(0)` atoms of N
D. `6.02xx 10^(23) NO_(2)` molescules `=6.02xx 10^(23)` atoms of N.