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10 Cards in this Set
- Front
- Back
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If an isotope is below the belt of stability in the plot of number of neutrons vs. number of protons then the isotope will most likely decay by
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electron capture |
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T or F: NaCl is more soluble in H2O than it is in most nonpolar solvents |
T |
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T or F: The solubility of gases increases as a temperature increases |
F |
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What is most important for solubility of CaCl2 in water? |
Ion dipole forces. |
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adding more solute to a solution increases all of the following except: |
freezing point |
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why does the vapor pressure decrease when a nonvolatile salt is dissolved in water? |
some of the sites on the surface of the water are blocked by ions. |
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What is the mole fraction of methanol in a solution that contains 4 moles of methanol and 8 moles of water? |
0.333 (4/(4+8)) |
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if two salt solutions are separated by a semipermeable membrane there will be a net flow of: |
solvent from low concentration solution to high concentration solution |
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For the reaction A -> B+C, a plot of ln[A] vs time gives a linear plot. The reaction is which order? |
First |
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the reaction A+B+C -> D+E, has the rate law, rate=k[A]2[B]. What can be said about this expression? |
Zero order C, second order A, first order B, 3rd overall |
