1. The problem statement, all variables and given/known data "Suppose you were to collect 1.0 L air by passing it slowly thorugh water at 20C and into a container. estimate the mass of water vapor in the collect air, assuming that the air is saturated." I don't know where to even begin. at first i thought it had something to do with henry's law, but that didn't lead me anywhere 2. Relevant equations Henrys Law S=kH X P 3. The attempt at a solution I have no idea, I read the chapter on physical equilibria throughly, but I can't answer this question. All I need is the conceptual understanding as to how I would solve this problem. The only way I thought of doing this is 1. find the solubility of air in water (henry's constant given) 2. plug in the vapor pressure of water at 20C for P 3. Obtain solubility 4. then I have the solubility of air in water 5. that didn't get me anywhere I couldn't think of anything else, conceptual guidance would be appreciated the answer is I don't know where to even begin. at first i thought it had something to do with henry's law, but that didn't lead me anywhere the answer is 0.017g thanks !