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.
Consider the following equation:0.0136 g + 2.70 × 10-4 g - 4.21 × 10-3 g = ? How many digits to the right of the decimal point should be used to report the result? =2, Choose the correct answer=9.66 × 10^-3 g, Which metric unit would be the best choice to report the result?=mg