Bi-209 undergoes alpha decay and produced -5.4x108 kJ/mol of energy in the process. Determine the actual mass (in g/mol) of the produced Tl-205 nucleus. Express your answer in 2 decimal places. Do not write the units. Mass of Bi-209 = 208.980 g/mol; Mass of He-4 = 4.003 g/mol Mass of proton = 1.0078 amu; Mass of neutron = 1.0087 amu Speed of light = 3.00 x 108 m/s 1 amu = 1 g/mol = 1.66 x 10-27 kg 1 MeV = 1.60 x 10-13 J

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Bi-209 undergoes alpha decay and produced -5.4x108 kJ/mol of energy in the process. Determine the actual mass (in g/mol) of the produced Tl-205 nucleus. Express your answer in 2 decimal places. Do not write the units.

Mass of Bi-209 = 208.980 g/mol; Mass of He-4 = 4.003 g/mol

Mass of proton = 1.0078 amu; Mass of neutron = 1.0087 amu

Speed of light = 3.00 x 108 m/s

1 amu = 1 g/mol = 1.66 x 10-27 kg

1 MeV = 1.60 x 10-13 J

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