6. Smoke detectors contain small amounts of americium-241. Am-241 decays by emitting alpha particlesand has a decay constant of 1.51x103/y. If a smoke detector gives off ten disintegrations per secondhow many grams of Am-241 are present in the detector?7. Calculate the mass defect (Am) and the binding energy of Berylium-9.ANSWER1/6..07 53 E8. Considerthe fission reaction in which U-235 is bombarded by neutrons. The products of the bombardmentare Rb-89. Ce-144, beta particles and more neutrons. The atomic mass of Rb-89 is 88.912278 and Ce-144 is 143.91365.a. Write the balanced nuclear equation for the bombardment.85u+n ce+ 3ANSWERutognRb +144Cet3e +&45. Oalculate AE when one gram of U-235 undergoes fission.ANSWERc. The detonation of TNT, an explosive, evolves 2.76 kJ/g/ How many kilograms of TNT are requiredto produce the same amount of energy as one milligram of U-235?ANSWER

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Asked Oct 24, 2019
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6. Smoke detectors contain small amounts of americium-241. Am-241 decays by emitting alpha particles
and has a decay constant of 1.51x103/y. If a smoke detector gives off ten disintegrations per second
how many grams of Am-241 are present in the detector?
7. Calculate the mass defect (Am) and the binding energy of Berylium-9.
ANSWER
1/6..07 53 E
8. Considerthe fission reaction in which U-235 is bombarded by neutrons. The products of the bombardment
are Rb-89. Ce-144, beta particles and more neutrons. The atomic mass of Rb-89 is 88.912278 and Ce-
144 is 143.91365.
a. Write the balanced nuclear equation for the bombardment.
85u+n ce+ 3
ANSWER
utogn
Rb +144Cet3e +
&4
5. Oalculate AE when one gram of U-235 undergoes fission.
ANSWER
c. The detonation of TNT, an explosive, evolves 2.76 kJ/g/ How many kilograms of TNT are required
to produce the same amount of energy as one milligram of U-235?
ANSWER
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6. Smoke detectors contain small amounts of americium-241. Am-241 decays by emitting alpha particles and has a decay constant of 1.51x103/y. If a smoke detector gives off ten disintegrations per second how many grams of Am-241 are present in the detector? 7. Calculate the mass defect (Am) and the binding energy of Berylium-9. ANSWER 1/6..07 53 E 8. Considerthe fission reaction in which U-235 is bombarded by neutrons. The products of the bombardment are Rb-89. Ce-144, beta particles and more neutrons. The atomic mass of Rb-89 is 88.912278 and Ce- 144 is 143.91365. a. Write the balanced nuclear equation for the bombardment. 85u+n ce+ 3 ANSWER utogn Rb +144Cet3e + &4 5. Oalculate AE when one gram of U-235 undergoes fission. ANSWER c. The detonation of TNT, an explosive, evolves 2.76 kJ/g/ How many kilograms of TNT are required to produce the same amount of energy as one milligram of U-235? ANSWER

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Expert Answer

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Given:

Beryliu...

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mass defect atomic mass = massproton + massneutron 4(1.00727647) 5(1.00866492) - 9.0121822 Δη Am = 0.06024828 g/mol

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