How many alpha emissions occur in 25.0 minutes

Reference no: EM13662773

State Polonium 218 is an alpha emitter with a half life of 3.0 minutes. Explain if a sample contains 55 mg of Po-218 (atomic mass = 218.008965), how many alpha emissions occur in 25.0 minutes? If the Polonium is ingested by a person to define what does of radiation (in Ci) is the person exposed?

Reference no: EM13662773

Questions Cloud

Explain how many grams of glucose require to be burned : Explain how many grams of glucose require to be burned to heat a block of metal from 22 °C to 162 °C. Define the piece of metal has a density of 2.335 g mL-1, a specific heat of 0.508 J g-1 °C-1, also has dimensions of 1.2×4.71×1.52 cm.

State a mechanism that accounts for methylcyclope formation : Determine the reaction of 1-cyclobutylethanol 1-hydroxyethylcyclobutane with concentrated H2SO4 at 120 degrees C. State structures of all reasonable organic products. Presuming that methylcyclopentene is one product, State a mechanism that account..

Define what is the exit temperature of the steam : Steam at 35 bar and 600 K enters a throttling valve that decrease the steam pressure to 7bar. Presuming there is no heat loss from the valve, Define what is the exit temperature of the steam and its change in entropy

Explain the rate of change of enthalpy of the system : Illustrate that the rate at which shaft work is obtained or needed for a reversible change of state in a closed system at constant entropy as well as pressure is equal to the rate of change of enthalpy of the system.

How many alpha emissions occur in 25.0 minutes : State Polonium 218 is an alpha emitter with a half life of 3.0 minutes. Explain if a sample contains 55 mg of Po-218 (atomic mass = 218.008965), how many alpha emissions occur in 25.0 minutes. If the Polonium is ingested by a person to define what..

Explain how many grams of salt per of ice is needeed to make : In winter, subsequent to a snow storm, salt (NaCl) is spread to melt the ice on roads. Explain how many grams of salt per 1000. g of ice is required to make it liquid at -2.0 C? Watch sig figs you may require to use scientific notation (i.e. 3.4e2..

Explain what will be the height of the barometric column : While 760mm of Hg is taken 1atm pressure was measured. Explain what will be the height of the barometric column if this mercury is replaced by water

Explain how many grams of potassium carbonate : A flask containing 450mL of 0.500MHBr was accidentally knocked to the floor. Explain how many grams of potassium carbonate are needed to neutralize the acid according to the subsequent equation

Red-winged blackbird : Red-winged blackbird

User Account

All Pages