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Alex Ar [27]
3 years ago
13

What does the variable A stand for in the Arrhenius equation? A. activation energy B. frequency factor C. rate constant D. react

ant concentration
Chemistry
1 answer:
Vika [28.1K]3 years ago
5 0

Let's go with...B. If I'm wrong, sorry

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What are the equilibrium concentrations of pb2+ and f– in a saturated solution of lead(ii) fluoride if the ksp of pbf2 is 3.20×1
erica [24]
Answer is:  the equilibrium concentrations fluorine anion are 0.004 M and lead cation are 0.002 M.<span>
Chemical reaction: PbF</span>₂(aq) → Pb²⁺(aq) + 2F⁻(aq).<span>
Ksp = 3,2·10</span>⁻⁸.
[Pb²⁺] = x.
[F⁻] = 2[Pb²⁺] = 2x<span>
Ksp = [Pb²</span>⁺] · [F⁻]².
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x = [Pb²⁺] = 0,002M = 2·10⁻³ M.
[F⁻] = 2 · 0,002M = 0,004 M = 4·10⁻³ M.

6 0
3 years ago
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How many atoms are in 1.5 moles of iron?
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Answer:

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From a starting position of 7 meters below sea level, the fish is descending 3 meters per second.
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