Air is comprised predominantly of nitrogen (n2) and oxygen gas. the ambient air in this room contains about 0.28g of oxygen (o2) gas per liter of air. a typical human at rest inhales about 19.3 fluid ounces (fl. oz.) of air per breath. and at rest takes about 20 breaths per minute. how many grams of oxygen gas does a human at rest inhale in an hour? show all calculations with the correct units for full credit.

190 g

Explanation:

Knowing that:

The grams of oxygen gas (O₂) that a human at rest inhales in 1 hour (60 minutes) will be calculated as:

grams of O₂ = breaths in 1 hour * air inhaled per breath * amount of O₂ in air

grams of O₂ = 191.78 g

190 g of O₂ are inhaled in 1 hour (written in correct number of significant figures)

*In the calculation the amount of air inhaled per breath was converted from fl.oz. to Liters knowing that 1 L = 33.814 fl.oz.

i think its 100.

hope this !