There are many threads on here discussing the duties of an RPN.Do a search and do some reading. As well the duties will vary depending on where you work. Generally you will do assessments, personal care, assist with ADLs, administer medications, perform procedures such as inserting catheters,communicate with families, wound care, communicate with other members of the health care team, provide patient education,feed, walk and toilet patients, do admissions and discharges, and of course document everything you have done all day.
I am sure others can add to this list.The schedule will depend on where you work and so will the pay. I work in a hospital and I make $28.55/hr.