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iren2701 [21]
1 year ago
5

The half life of plutonium-239 (239pu, pu-239) is 24,100 years. How much plutonium will remain after 1000 years if the initial a

mount is 5 g?.
Chemistry
1 answer:
Anestetic [448]1 year ago
8 0

The mass of plutonium that will remain after 1000 years if the initial amount is 5 g when the half life of plutonium-239 (239pu, pu-239) is 24,100 years is 2.5 g

The equation is Mr=Mi(1/2)^n

where n is the number of half-lives

Mr is the mass remaining after n half lives

Mi is the initial mass of the sample

To find n, the number of half-lives, divide the total time 1000 by the time of the half-life(24,100)

n=1000/24100=0.0414

So Mr=5x(1/2)^1=2.5 g

The mass remaining is 2.5 g

  • The half life is the time in which the concentration of a substance decreases to half of the initial value.

Learn more about half life at:

brainly.com/question/24710827

#SPJ4

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Plsss help this midterm ends 12.30
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Answer:

We know that,

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5 0
3 years ago
2. What is the molarity of a CuBr2 solution that contains 446 g of solute in 5000 mL of solution?
klemol [59]

Answer:

0.4 M

Explanation:

M=moles/Liters

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4 0
3 years ago
18 g of argon occupy 750 ml at a particular temperature and pressure. How many grams of methane would occupy the same volume at
frozen [14]

Answer:

7.21 grams is the mass of methane

Explanation:

We may use the Ideal Gases Equation to solve this:

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Let's convert the moles to mass of CH4.

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5 0
3 years ago
Please help ASAP<br><br> list three intermolecular forces from strongest to weakest
garri49 [273]

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Explanation: Mark me brain, give 5 stars and a thank you

7 0
3 years ago
Read 2 more answers
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Annette [7]

Answer:

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Explanation:

The reacting species should collide with orientation that allows contract between the atoms that will become bonds together in the product.

The collision occurs with adequate energy  to permit mutual penetration of the reacting species. The two physical factors based on the orientation and energy of collision, the following reaction with carbon monoxide with oxygen is considered.

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After collision between the carbon monoxide and oxygen the reaction is

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Based on the theories of chemical reaction the molecules collide with sufficient amount of energy an activated complex is formed.

7 0
3 years ago
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