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shutvik [7]
3 years ago
12

Helppppppppppppp it’s timedddddddddd

Chemistry
1 answer:
Dmitry [639]3 years ago
7 0

Answer:

Ok what do you need help with?

Explanation:

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Hydrogen 3 has a half life of 12.32 years a sample of h-3 weighing 3.02 grams is left for 15.0 years what will the final weight
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Answer:

The final mass of sample is 1.3 g.

Explanation:

Given data:

Half life of H-3 = 12.32 years

Amount left for 15.0 years = 3.02 g

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First all we will calculate the decay constant.

t₁/₂ = ln² /k

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Now we will find the original amount:

ln (A°/A) = Kt

ln (3.02 g/ A) = 0.05626 y⁻¹ × 15.0 y

ln (3.02 g/ A) = 0.8439

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3.02 g/ A = 2.33

A = 3.02 g/ 2.33

A = 1.3 g

The final mass of sample is 1.3 g.

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A chemical reaction in which compounds break up into simpler constituents is a _______ reaction.
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