5 g of compound A ( MW =90) was used to make 250 mL of its aqueous solution. The molarity of the solution in M is x × 10^-1. The value of x is \ \ \…

$\displaystyle 5$ g of compound $\displaystyle \mathrm{A}(\mathrm{MW}=90)$ was used to make $\displaystyle 250$ mL of its aqueous solution. The molarity of the solution in M is $\displaystyle x \times 10^{-1}$. The value of $\displaystyle x$ is \_\_\_\_. (Rounded off to the nearest integer)