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andrezito [222]
3 years ago
9

The half-life of tritium, or hydrogen-3, is 12.32 years. After about 37 years, how much of a sample of tritium will remain uncha

nged? A)1/8   B)1/4  C)1/3  D)1/2
Chemistry
2 answers:
Kipish [7]3 years ago
8 0
I think that the answer is 1/8 Hope this helps!!!! :D
Blizzard [7]3 years ago
7 0

The correct option is A) 1/8


half-life of tritium, or hydrogen-3, is 12.32 years.      

After about 37 years,

= 37/12.32

= 3

means 3 half lives.


sample of tritium that will remain unchanged will be:

= 1/2^no.of half lives

= 1/2³

= 1/2 x 1/2 x 1/2 = 1/8

<u> 1/8 remains back</u>





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Here, we are required to determine the volume of the earth which is 1.08326 × 10¹² km³ in liters.

<em>The volume of the earth is approximately</em>,

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By conversion factors;

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The conversion factor from 1km³ to liters is therefore, c.f = 10¹²liters/km³

Therefore, the volume of the earth which is approximately, 1.08326 × 10¹² km³ can be expressed in liters as;

<em>1.08326 × 10¹² km³ × 10¹²liters/km³ </em>

The volume of the earth is approximately,

1.08326 × 10²⁴ liters.

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