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Ber [7]
3 years ago
5

Acid strength in a series of h−a molecules increases with increasing size of

Chemistry
1 answer:
-BARSIC- [3]3 years ago
8 0
Hello there!

The statement that Acid strength in a series of H-A molecules increases with increasing size of A is True.

When only the size is involved, increasing the size will increase the Acid strength because as size increases, the H-A bond will become weaker as the atoms will be farther apart. Acid strength is related to the ability to release H⁺ ions and a weaker H-A bond will release H⁺ more easily. 

Have a nice day!
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What would be the oxidation and reduction half reactions for this equation?
Sedbober [7]

Answer:

Fe(s) → Fe²⁺(aq) + 2e⁻   OXIDATION

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We need to know that elements in ground state have 0 as the oxidation state.

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In the iron(II) chloride, the Fe acts with +2, so the oxidation statehas increased → OXIDATION

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A 25.0 mL sample of 0.123 M HCl was titrated with 18.04 mL of NaOH . What is the concentration of the NaOH ?
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Answer:

0.170 M

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