The ampere (A) The ampere is the SI base unit of electrical current. ...The candela (cd) The candela is the SI base unit of luminous intensity. ...The kelvin (K) The kelvin is the SI base unit of thermodynamic temperature. ...The kilogram (kg) The kilogram is the SI base unit of mass. ...The metre (m) ...The mole (mol) ...The second (s)
The correct answer - Dalton
NA = 6.022*10^23
number of atoms = number of moles * avogadros number
number of atoms = <span>6.022*10^23 * 1.4 moles * 4 atoms / molecules of PCl3
Number of atoms = 3.37*10^23 atoms.</span>
