quilibrium are two very important biological and chemical concepts. Classify whether the 2nd sentence of each question below is true or false. 26. Intracellular sodium concentration is lower than extracellular concentration. This is an example of chemical equilibrium. 27. Osmosis maintains equal concentrations of water on both sides of a parti membrane. This is an example of the maintenance of a steady state. 20 biological

quilibrium are two very important biological and chemical concepts. Classify whether the 2nd sentence of each question below is true or false. 26. Intracellular sodium concentration is lower than extracellular concentration. This is an example of chemical equilibrium. 27. Osmosis maintains equal concentrations of water on both sides of a parti membrane. This is an example of the maintenance of a steady state. 20 biological

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter17: Chemical Equilibrium

Section: Chapter Questions

Problem 1STP

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. What does it mean to say that a state of chemical or physical equilibrium is dynamic?
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A gaseous material XY(g) dissociates to some extent to produce X(g) and Y(g): XY(g)X(g)+Y(g) A 2.00-g sample of XY (molar mass = 165 g/mol) is placed in a container with a movable piston at 25C. The pressure is held constant at 0.967 atm. As XY begins to dissociate, the piston moves until 35.0 mole percent of the original XY has dissociated and then remains at a constant position. Assuming ideal behavior, calculate the density of the gas in the container after the piston has stopped moving, and determine the value of K for this reaction of 25C.