In acetic acid vapor, molecules exist as monomers and others as dimers. If the density of the vapor at 76.85 ° C and 1 atm is 3.23 g / L, what is the percentage of molecules
that form dimers?
to. 54.3%
b. 26.4%
c. 14.7%
d. 5.6%

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

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.