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 water reaction Suppose the CÓ 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 142. mL. Sketch of a gas-collection apparatus Calculate the mass of CO 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. Og

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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 to isolate and measure the amount of gas produced.
collected
gas
chemical
water
reaction
Suppose the CÓ 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
142. mL.
Sketch of a gas-collection apparatus
Calculate the mass of CO 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.
Og
Transcribed Image Text: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 water reaction Suppose the CÓ 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 142. mL. Sketch of a gas-collection apparatus Calculate the mass of CO 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. Og
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