Answer:
i dont know i dont know i dont know ind i hope you understand love ya
There's two sig figs: the 1 and the zero. The 10^-2 contributes no sig figs.
You find the molar mass of NaCl first, by adding the weight of both to get 58.44g.
Then you set up the equation with what is given:
2.4mol NaCl and multiply it by 58.44g NaCl to get your answer= 140.256g