Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy t

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Sometimes In Lab We Collect The Gas Formed By A Chemical Reaction Over Water See Sketch At Right This Makes It Easy T 1 (344.86 KiB) Viewed 17 times

Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. collected gas chemical reaction water Suppose the H gas evolved by a certain chemical reaction taking place at 30.0 °C is collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 27.0 mL. Sketch of a gas-collection apparatus Calculate the mass of H, that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases. OL g х $ ?