A sample of oxygen is collected over water at 22°C and 752 mm Hg in a125-mL flask. The vapor pressure of water at 22°C is 19.8 mm Hg.(a) What is the partial pressure of oxygen?(b) How many moles of dry gas are eoollected?(c) How many moles of wet gas are in the flask?(d) If 0.0250 g of N2(g) are added to the flask at the same temperature, what is the partial pressure of nitrogen in the flask?(e) What is the total pressure in the flask after nitrogen is added?

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Introduction and Basic Calculations in Multiphase Systems

Chemical calculations involve material and energy balance calculations which enable engineers to calculate material and energy requirements in various chemical processes. In addition to this, chemical calculations help to study the behavior and properties of gases, liquids, and their mixtures.