Chemistry, 26.03.2020 03:28 emilylittle2442

I can't figure out which of these are conjugates. I can figure out if they're acids, bases, or neutrals, but how do I know if they're conjugate acids or conjugate bases?

I can't figure out which of these are conjugates. I can figure out if they're acids, bases, or neutr

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Answer from: lashondrascott

11. Conjugate base

12. Acid

13. Acid

14. Conjugate base

15. Acid

16. Base

17. Conjugate acid

18. Acid

19. Conjugate base

20. Neutral

Explanation:

Determine the reactions of each in water. Remember that:

Acid → Releases a proton ⇒ Conjugate base

Base → Accept a proton ⇒ Conjugate acid

CN⁻ + H₂O ⇄ HCN + OH⁻

Cianide ion comes from cianhydric acid. Therefore it is the conjugate base

H₃PO₄ + H₂O ⇄ H₃O⁺ + H₂PO₄⁻

Phosphoric acid it is a polyprotic acid and It can release, at least 3 protons.

All the products are the conjugate bases (H₂PO₄⁻, HPO₄⁻², PO₄⁻³)

HCl, the same case as H₃PO₄. It is an acid that release a proton.

HCl + H₂O ⇄ H₃O⁺ + Cl⁻

The conjugate base will be the chloride formed

ClO₂⁻ + H₂O ⇄ HClO₂ + OH⁻

Same case as the cyanide. The chlorite anion takes a proton from water to become, chlorous acid (the conjugate acid)

H₂SO₄ is an acid. It is a diprotic acid, because it can release 2 protons:

H₂SO₄ + H₂O → HSO₄⁻ + H₃O⁺

The products HSO₄⁻ and SO₄⁻² are the conjugate base

NaOH is a base. In water dissociates, as this equation shows:

NaOH → Na⁺ + OH⁻

NH₄⁺ comes from the ammonia. Ammonia is the base, so the ammonium is the conjugate acid.

NH₄⁺ + H₂O ⇄ NH₃ + OH⁻

HNO₃ is an acid. The nitrate will be the conjugate base.

HNO₃ + H₂O → NO₃⁻ + H₃O⁺

F⁻ is the fluoride anion. It comes from the fluorhydric acid.

That's why it is the conjugate base: F⁻ + H₂O ⇄ HF + OH⁻

Distilled water is always neutral. It can behave as an acid and a base. This is called an amphoteric compound.

Answer from: Quest

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

Answer from: Quest

a polar bond is formed when electrons are shared unevenly between atoms

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I can't figure out which of these are conjugates. I can figure out if they're acids, bases, or neutr...

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