A) \[2.054\times {{10}^{23}}\]
B) \[5.043\times {{10}^{25}}\]
C) \[8.044\times {{10}^{23}}\]
D) \[6.023\times {{10}^{23}}\]
Correct Answer: D
Solution :
As 1 mole of \[\text{N}{{\text{H}}_{3}}=17\,g.\] =1 mole of \[N{{H}_{3}}\]contains number of atoms \[4\times 6.023\times {{10}^{23}}\] So, number of atoms in 4.25 g of total \[N{{H}_{3}}=\frac{4\times 6.023\times {{10}^{3}}}{17}\] \[=6.023\times {{10}^{23}}.\] Hence the correct option is (d).
You need to login to perform this action.
You will be redirected in
3 sec
