Question

What mass of 33.6 L of nitrogen gas (N2) have stp

Answer 1

Molar mass N2 = 28.0 g/mol

1 mole --------- 22.4 L ( at STP)
? mole --------- 33.6 L

33.6 x 1 / 22.4 => 1.5 moles

Therefore:

1 mole N2 ------------ 28.0 g
1.5 moles ------------ ?

1.5 x 28.0 / 1 => 42 g of N2

hope this helps!