If $N_2$  gas is bubbled through water at 293 K. How many moles of  $N_2$ gas would dissolve in 1 lit of water assume that $N_2$ exerts. Partial pressure of 0.987 bar. Given that Henry’s law constant for $N_2$ at 293 K is  $76.48K\text{bar}$ is______ $\times {10}^{-4}mol$. (density of $H_{2}O1g/ml$ )