Nicotine is 74.1% carbon, 8.6% hydrogen, and 17.3% nitrogen by mass. what is its molecular formula if its molar mass is 162.26 g/mol

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

i'm wiling to try and you : )