HARDEST QUESTION OF ALL TIME CAN YOU SOLVE IT? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The pressure in an automobile tire filled with air is 245.0kPa. If PO2 = 51.3kPa, PCO2 = 0.10kPa, and Pothers = 2.3kPa, what is PN2 ?
First you want to change the 20% into a decimal which is .20 Next you want to multiply 90 by .20 because that will give you the answer for 20% of 90 90x.20=18