Carl has an empty 35.0-liter tank that he wants to fill with 18.3 moles of oxygen gas. The gas in the tank will have a temperature of 25°C. If the air surrounding the tank is at standard pressure, what will be the gauge pressure of the oxygen in the tank in atmospheres?

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)