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 2 mole of N atoms
8 moles of H atoms, 2 moles of Cr atoms and 7 moles of O atoms
`:.` total atoms of elements = 2+8+2+7 = 19 moles
`=19xx6.023xx10^(23)` atoms
`=114.437xx10^(23)`