General Organic

Chemistry

Quiz 7 :

Changes of State and Gas Laws

Quiz 7 :

Changes of State and Gas Laws

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Henry's law is img .Which statement BEST describes the meaning of this law?
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B

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Air is primarily composed of nitrogen (594 torr)and oxygen (160 torr).There is also carbon dioxide and water vapor in the air.Assuming that atmospheric pressure is 760 torr, what is the partial pressure of carbon dioxide and water vapor combined?
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E

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Which statement BEST describes how the kinetic molecular view of gases can be used to explain the effect of gas temperature on gas pressure?
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E

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Three boxes, each containing molecules in the gas phase, are illustrated below.Which box would you expect to have the highest pressure? img
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This diagram shows balloons of various sizes filled with helium gas.Balloon A is at STP.If you heat balloon A, which balloon would you predict would BEST represent the new size of balloon A? img
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Which of the following statements about pressure is FALSE?
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Which statement about the density of gases is FALSE?
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Balloon A is placed into a container that has a higher pressure than atmospheric pressure.Which of the following statements about the relationship between pressure and volume is TRUE?
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Which atom has the highest electronegativity in this molecule of acetone? img
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You boil a pot of water (H2O)to make spaghetti and, when the water reaches its boiling point, you notice that it bubbles.What are these bubbles composed of?
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One of the symptoms of the bends is joint pain.Why does joint pain occur with the bends?
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Which of the following statements BEST describes the process that occurs when air is inhaled into the lungs?
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You have a balloon containing 1.4 L of gas in it at standard temperature and pressure.Which conversion factor would you use to convert this number to moles?
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Which bond in acetone, shown below, is correctly labeled with a dipole arrow? img
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Which of the following changes is NOT correctly labeled as a chemical reaction or a change of state?
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How does the pressure of a gas change when it is heated in a sealed container with a constant volume? (Note: It is not a good idea to actually do this without special equipment)
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What is the molecular geometry of the carbon indicated by the arrow in this molecule of acetone? img
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Imagine that you have a beaker of gas molecules as shown in the image below.If all of the gas in the beaker is transferred to a new beaker half the size of the original beaker, while maintaining the same temperature, which view BEST represents what the gas would look like? img
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At 1.0 atm, the air in a pilot's lungs occupies 0.50 L.The pilot ascends to an altitude where the pressure is 0.35 atm.If the pilot holds her breath during her ascent, what is the new volume of the air in the pilot's lungs?
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In which of the following statements is the gas variable (in italics)correctly described?
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