Zinc reacts with aqueous sulfuric acid to form hydrogen gas: Zn (s) + H2SO4 (aq) → ZnSO4 (aq) + H2 (g) In an experiment, 201 mL of wet H2 (g) is collected over water at 27 °C and a barometric pressure of 760 mmHg. How many grams of Zn have been consumed? The vapor pressure of water at 27 °C is 26.74 mmHg. a. 0.519 b. 3.94 × 105 c. 394 d. 4.38 × 106 e. 519

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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.