3. If we know the volume of a gas sample at STP, we can determine how much mass is present. Assume we have 867L of N2 at STP. What is the mass of the nitrogen gas? (this is a multi step problem - you will have to convert liters to moles, then moles to mass)
Solve and explain.

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.