Which of the following is the mass in grams of 4.25 * 10³ mol of N2?

From the periodic table:

mass of nitrogen = 14 grams

This means that:

molar mass of N2 = 2*14 = 28 grams

Now, number of moles can be calculated using the following rule:

number of moles = mass / molar mass

Therefore:

mass = number of moles * molar mass

mass = 4.25*10^3 * 28

mass = 119 * 10^3 grams