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

Comprehend the regressive nature of sales taxes on consumer goods.

Analyze the progressive and regressive characteristics of different tax systems.

Understand the impact of supply elasticity on the tax burden borne by producers.

Identify the characteristics of a highly progressive tax system.