Chemistry & Chemical Reactivity
Solutions
Chemistry & Chemical Reactivity
Phosphorus occurs in nature as a single isotope, phosphorus-31. Neutron irradiation of phosphorus-31 produces phosphorus-32, a β emitter with a half-life of 14.28 days. Assume you have a sample containing phosphorus-32 that has a rate of decay of 3.2 × 106 dpm. Draw a graph showing disintegrations per minute as a function of time during a period of 1 year.
Interpretation: To draw the graph of disintegration per minute as a function of time during a period of one year.
Concept Introduction: Phosphorus-31 occurs in nature as a single isotope of phosphorus. Phosphorus produces phosphorus-32 by the emission of beta particle.
Half-Life: It is defined as the time required to reduce the concentration of reactant present in the reaction to one half of its initial value.
Half-life of the phosphorus-32
The rate of decay
The time period
According to integrated first order rate equation,
Chapter 25 Solutions
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