Chemistry Homework Help

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Mass Defect

Q. If 1.8 x 10^14 J are given off in a nuclear reaction, how much matter was converted into energy? 1. 2.0 x 10^-3 kg 2. 6.0 x 10^5 kg 3. 7.2 x 10^2 kg 4. 1.6 x 10^31 kg

Solved • Nov 14, 2019

Mass Defect

Q. How much energy is created from the complete conversion of 1.0 x 10^-4 kg of matter into energy? The speed of light is 3.0 x 10^8 m/s. 1. 9.0 x 10^12 J 2. 9.0 x 10^15 J 3. 3.0 x 10^4 J 4. 3.0 x 10^7 J

Solved • Nov 14, 2019

Mass Defect

Q. The mass defect of an isotope is 0.410 amu/atom. Calculate the binding energy in J/mol of atoms

Solved • Oct 26, 2019

Mass Defect

Q. Given the exact mass of a 54 Fe atom is 8.9568883×10-26 kg, calculate the total nuclear binding energy in joules per mole 54 Fe nuclei. Calculate the binding energy in joules per mole nucleons.

Solved • Sep 11, 2019

Mass Defect

Q. Consider the nuclear reaction 238 92 U 234 90 Th + 4 2 He. The nuclei in this reaction have the masses 238.003 amu for 238 92 U, 233.9942 amu for 234 90 Th and 4.0015 amu for 4 2 He. Find the E when one mole of 238 92 U nuclei undergoes this reaction

Solved • Aug 18, 2019

Mass Defect

Q. Consider the reaction 7(10n) + 7 (11p) --> 147N The neutron mass is 1.00866 amu and the proton mass is 1.00728 amu. The mass of a 147N nucleus is 13.999324 amu. (a) Find dE when one mole of 147N nuclei are formed in the above reaction.

Solved • Aug 18, 2019

Mass Defect

Q. Be sure to answer all parts. How many joules are released when 1.90 mol of 239 Pu decays if each nucleus releases 5.243 MeV?

Solved • Aug 5, 2019