Convert 5.0 g H2 to liters at STP

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false