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Arlecino [84]
3 years ago
12

How many ozone molecules can each chlorine atom in the stratosphere destroy

Chemistry
1 answer:
katrin [286]3 years ago
6 0

Answer:

100,000

Explanation:

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What reasons did the Pilgrims give for creating the Mayflower Compact?
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The solubility of CaF2 is 0.00021 mole per liter. What is the solubility product constant for CaF2? A) 7.3 x 10-12 B) 3.7 x 10-1
Naddika [18.5K]

Answer:

B) Ksp = 3.7 E-11

Explanation:

CaF2 ↔ Ca2+  +  2F-

  S            S          2S,,,,,,,,,,,,,,,in the equilibrium

⇒ Ksp = [ Ca2+ ] * [ F- ]²

⇒ Ksp = S * ( 2S )²

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⇒ Ksp = 4 * 9.261 E-12

⇒ Ksp = 3.704 E-11

3 0
3 years ago
For each of the following, indicate if the number of half-lives elapsed is:
Hunter-Best [27]

Answer:

  • <u>a. one half-life</u>
  • <u>b. three half-lives</u>
  • <u>c. two half-lives</u>

Explanation:

The number of half-lives elapsed, n, is calculated dividing the time by the half-life time:

  • n = time / half-life time

<u>a. A sample of Ce-141 with a half-life of 32.5 days after 32.5 days</u>

  • n = 32.5 days / 32.5 days = 1 half-life

<u />

<u>b. A sample of F-18 with a half-life of 110 min after 330 min</u>

  • n = 330 min / 110 min = 3 half-lives

<u />

<u>c. A sample of Au-198 with a half-life of 2.7 days after 5.4 days</u>

  • n = 5.4 days / 2.7 days = 2 half-lives
4 0
3 years ago
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