The total number of atoms of all elements present in mole of ammonium dichromate is

Options

A. 19
B. `6.023xx10^(23)`
C. `114.473xx10^(23)`
D. `84.322xx10^(23)`

Answer

C

Explanation

Ammonium dichromate is `(NH_(4))_(2)Cr_(2)O_(7)`
1 mole of it contains of 2 moles of N atoms,
8 moles of H atoms, 2 moles of Cr atoms and 7 moles of O-atoms.
`therefore " Total atoms of all elements "=2+8+2+7`
`="19 moles"=19xx6.023xx10^(23)" atoms"`
`=114.437xx10^(23)`