Spring Semester Review - Honors Chemistry

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Nuclear <strong>Chemistry</strong> (Ch 24) 1. Sodium-24 has a half-life of 15.0 hours. How much sodium-24 will remain from a 18.0 g sample after 33.5 hours? 2. What happens when a neutron beaks down? 3. Write nuclear equations for these reactions: a. the alpha decay of Po-218: b. the beta decay of Pb-210: c. the electron capture by Be-7: d. the positron emission of F-19: 4. Complete the following transmutation reactions: a. Li-6 reacts with a neutron to form an alpha particle plus one other particle. What is the missing particle? b. U-235 is bombarded with a neutron to form Rb-90 and Cs-144. What are the missing particles? 10
5. An artifact is found to contain 0.73 times the C-14 found in a living plant. What is the approximate age of the plant? 6. Calculate the binding energy of an N-14 atom (mass = 14.00307 amu): Thermochemistry (Ch 15) 1. What is the amount of heat required to raise the temperature of 200.0 g of aluminum by 10ºC? 2. What is the specific heat of a substance a 2.78 g sample of the material absorbs 241 J of energy when its temperature increases by 175ºC. 3. A student mixed 100.0 mL of water at 47.2ºC with 35.0 g lead at 112ºC. What was the final temperature of the mixture? 11
Page 1 and 2: Honors Chemistry Semester II Review
Page 3 and 4: 16. What happens to pressure if: a.
Page 5 and 6: 4. Describe how you would make the
Page 7 and 8: 4. Label the acid, base, conjugate
Page 9: 9. Draw and label structures that a

Spring Semester Review - Honors Chemistry

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