PLEASE HELP ASAP! WILL MARK BRAINLIEST! Which of the following steps correctly converts 6 grams of fluorine to an equivalent number of moles of fluorine?

Divide 6 by the atomic mass of fluorine.
Divide the atomic mass of fluorine by 6.
Subtract 6 from the atomic mass of fluorine.
Multiply the atomic mass of fluorine by 6.

it means there are 3 atoms of oxygen

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.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.