[SOLVED] collisions of molecules.. 1. The problem statement, all variables and given/known data a 10cm^3 box contains nitrogen at 20degreeC. What is the rate of collisions on one wal of he box. 2. Relevant equations kb=1.38x10^-23 1u=1.661x10^-27 molecular mass of N2=28u avagadros number=6.02x10^23mol^-1 vrms=sqrt((3kbT/m)) rate of collisions=(1/2)(N/V)Av 3. The attempt at a solution omg i got no idea where even start with this one... im pretty sure i could do it if they gave me the mass of the gas or the number of molecules...... but im just stuck.... y do they give me avagdros number????? im srry im just really confused bout this one... anyone plz help??