What is the mass of 2.15 liters of n2 gas at stp? 1.82 grams 2.68 grams 2.92 grams 3.11 grams

2.68 grams

Explanation:

According to avogadro's law, 1 mole of the substance occupies 22.4 liters at STP and contains avogadro's number of particles and weighs equal to its molecular mass.

1 mole of weighs 28 grams.

Also 1 mole of occupies 22.4 Liters.

Thus 22.4 L weigh = 28 grams

2.15 L of weigh =

Thus the mass of nitrogen gas is 2.68 grams.

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

answer; talc and gypsum;