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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

Data from the appendices and the periodic table may be needed for these problems.

53. You can sometimes find deep red crystal vases in antique stores, called uranium glass because their color was produced by doping the glass with uranium. Look up the natural isotopes of uranium and their half−lives, and calculate the activity of such a vase assuming it has 2.00 g of uranium in it. Neglect the activity of any daughter nuclides.

To determine

The activity of deep red crystal vases in antique stores assuming it has 2.00 g of uranium in it? Neglect the activity of any daughter nuclides.

Explanation

Given info:

  m=2g

Formula used:

Activity,

  R=0.693Nt1/2

Calculation:

Number of atoms in 2 g of U238 ,

  N=2238×6.02×1023=5.06×1021atoms

Half-life of U238=4.468×109y

Substituting,

  R=0

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