Chlorophyll extracted from the crushed green leaves was dissolved in water to make 2 L solution of Mg of concentration 48 ppm . The number of atoms of Mg in this solution is $\mathrm{x} \times 10^{20}$ atoms. The value of x is $\_\_\_\_$ . (Nearest Integer)
(Given: Atomic mass of Mg is $24 \mathrm{~g} \mathrm{~mol}^{-1}, \mathrm{~N}_{\mathrm{A}}=6.02 \times 10^{23} \mathrm{~mol}^{-1}$ )