# When a sample of NO(g) (11.75 mol) is placed in 440.0 L reaction vessel at 882.0 K and allowed to come to equilibrium the mixture contains 79.86 grams of N2(g). What is the concentration (mol/L) of N2(g)?

##### 1 Answer

Oct 8, 2014

The concentration of N₂ is 6.480 × 10⁻³ mol/L.

At first glance, this looks like an equilibrium calculation, but it is more like a molarity calculation.

**1.** Calculate the moles of N₂

**2.** Calculate the concentration of N₂