Calculate the Energy Released in Joules When One Mole of Polonium-214

question 114

Multiple Choice

Calculate the energy released in joules when one mole of polonium-214 decays according to the equation ${ }_{84}^{214} \mathrm{Po} \rightarrow{ }_{82}^{210} \mathrm{~Pb}+{ }_{2}^{4} \mathrm{He} .$ [Atomic masses: Pb-210 = 209.98284 amu, Po-214 = 213.99519 amu, He-4 = 4.00260 amu.]

• A) 8.78 * 10¹⁴ J/mol
• B) 7.2 * 10¹⁴ J/mol
• C) 8.78 * 10¹¹ J/mol
• D) -9.75 * 10^-3 J/mol
• E) 1.46 * 10^-9 J/mol

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