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stiv31 [10]
3 years ago
14

A Nuclear reactor produces product 20kg of uranium-235.if the half life is about 70years , how long will it take to decay to 0.1

kg​
Chemistry
1 answer:
VikaD [51]3 years ago
8 0

Answer:

t=(70)ln(19.9/20)/-ln2

70 is the years. 19.9 kg is what is left after 0.1kg decay. 20kg is your initial amount.

t=0.506 years with a decay constant of 0.0099021/year

Explanation:

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How many moles are in 43.9 L of oxygen
Ede4ka [16]

Answer: 2 mol

Explanation:

- According to the ideal gas law, One mole of an ideal gas at STP (standard temperature and normal pressure) occupies 22.4 liters.

- Using cross multiplication,

                               1 mol of (O2)        →       22.4 L

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3 0
3 years ago
Most reactions speed up when
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Hope this helps, have a great day/night ahead!
7 0
3 years ago
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The purpose of the experiment is to see how water of different temperature and salinity affect the density.

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