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

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Collected Sometimes In Lab We Collect The Gas Formed By A Chemical Reaction Over Water See Sketch At Right This Makes 1 (152.54 KiB) Viewed 54 times

collected 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. S chemical reaction water Suppose the O₂ gas evolved by a certain chemical reaction taking place at 40.0 °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 126. mL. Sketch of a gas-collection apparatus Calculate the mass of O2 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. g x10 X S ? gas ▷ 00. Ar