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(Solved): A sample of radium _(88)^(224)Ra (atomic mass =224.020186u,T_((1)/(2))=3.66 days) contains N_(0)=1.0 ...



A sample of radium

_(88)^(224)Ra

(atomic mass

=224.020186u,T_((1)/(2))=3.66

days) contains

N_(0)=1.04\times 10^(21)

nuclei and undergoes

a

decay to produce radon

_(86)^(220)Rn

(atomic mass

=220.011368u

). The atomic mass of an

a

particle is 4.002603 u . The latent heat of fusion for water is

33.5\times 10^(4)(J)/(k)g

. With the energy released in 3.66 days, how many kilograms of ice could be melted at

0\deg C

m=

Number Units

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