Question 7 what is the volume of 28.0 g of nitrogen gas at stp? 44.8 l 33.6 l 11.2 l 22.4 l none of the above

At STP, 1 mol of gas corresponds to 22.4 L. The molar mass of nitrogen is 14.0g so the molar mass of nitrogen gas (N2) is 28.0g. The moles of nitrogen in this sample of nitrogen gas is
                           28.0 g / (1 mol / 28.0 g) = 1.00 mol
If we convert to liters, we get
                           (1.00 mol)(22.4 L / 1mol) = 22.4 L
Therefore, your answer is 22.4 L.

3авиипп

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.