Calculate the volume of air in liters that you might inhale(and exhale)in 8.0 hours. assume that each breath has a volume of 0.57 liters, and that you are breathing 17 times a minute

Formula:
0.57 liters = 1 breath(17 breaths = 1minute)(60 minutes = 1 hour)(8 hours) = 4651.2 liters

each breath is 0.57 liters
He or she exhales 17(0.57) = 9.69 liters in a minute
in an hour, he or she exhales 9.69(60) liters in a minute = 581.4 liters
Answer = in 8 hours he or she exhales, 581.4(8) = 4651.2 liters in 8 hours

Hope that answers your question

What are the choices?

1) according to the law of conservation of mass ,in all chemical reactions total mass is unchanged