N2(g) + 3H2(g) ↔ 2NH3(g) + 91 kJ Analyze the reaction above, explain three ways you can increase the concentration (amount of) N2. In your answer make sure to use words such as increase/decrease concentration, increase/decrease concentration temperature, and shift right/left.
Please help, I don't know what to do:

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.