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kramer
3 years ago
11

Write the formula for the conjugate acid of each of the following bases. 1. NH₃

Chemistry
1 answer:
tino4ka555 [31]3 years ago
8 0

Answer:

According to Bronsted-Lowry theory, an<u> acid</u> is any species that can<em> donate</em> H+ (proton), while a<u> base</u> is any species that can<em> accept</em> a H+ ion.

  1. NH_{3}  

                          NH_{3}(aq) + H_{2}O(aq) → NH_{4}^{+}(aq)+ OH^{-}(aq)

NH_{4}^{+} is the conjugate acid of NH_{3}

      2. ClO_{3}^{-}

                           ClO_{3}^{-}(aq) + H_{2}O(aq) → HClO_{3}(aq) + OH^{-}(aq)

HClO_{3} is the conjugate acid of ClO_{3}^{-}

       3. SO_{4}^{2-}

                             SO_{4}^{2-}(aq) + H_{2}O(aq) → HSO_{4}^{-}(aq) + OH^{-}(aq)

HSO_{4}^{-} is the conjugate acid of  SO_{4}^{2-}  

         4. OH^{-}

                              OH^{-}(aq) + H^{+}(aq) → H_{2}O(aq)

H_{2}O is the conjugate acid of OH^{-}

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Lostsunrise [7]

Answer:

1 to 2 3 to 6

Explanation:

5 0
2 years ago
What is the pH of a solution made by mixing 30.00 mL 0.10 M HCl with 40.00 mL of 0.10 M KOH? Assume that the volumes of the solu
nirvana33 [79]

Answer:

pH = 12.15

Explanation:

To determine the pH of the HCl and KOH mixture, we need to know that the reaction is  a neutralization type.

HCl  +  KOH  →  H₂O  +  KCl

We need to determine the moles of each compound

M = mmol / V (mL) → 30 mL . 0.10 M = 3 mmoles of HCl

M = mmol / V (mL) → 40 mL . 0.10 M = 4 mmoles of KOH

The base is in excess, so the HCl will completely react and we would produce the same mmoles of KCl

HCl  +  KOH  →  H₂O  +  KCl

3 m       4 m                       -

             1 m                      3 m

As the KCl is a neutral salt, it does not have any effect on the pH, so the pH will be affected, by the strong base.

1 mmol of KOH has 1 mmol of OH⁻, so the [OH⁻] will be 1 mmol / Tot volume

[OH⁻] 1 mmol / 70 mL = 0.014285 M

- log [OH⁻] = 1.85 → pH = 14 - pOH → 14 - 1.85 = 12.15

3 0
3 years ago
How many orbitals are in 2s sublevel?
kykrilka [37]
4 orbitals. P sublevel has 3 orbitals. 2nd level has 4 orbitals. An f sublevel has 7 orbitals.
7 0
2 years ago
Which one of the following best represents the predicted approximate chemical shift and coupling:
mezya [45]

Answer:

C. 3.40 ppm, singlet

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Given the information from the question .we have to select the best representation for represents the predicted approximate chemical shift and coupling for hydrogen(s). In this case, there is no neighboring hydrogen .Thus there won’t be any split .the best option answer is C. 3.40 ppm, singlet . Therefore the correct answer or option is C. 3.40 ppm, singlet.

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3 years ago
Which of the following atoms would be expected to be diamagnetic in the ground state?
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The atoms that would be expected to be diamagnetic in the ground state is  magnesium

The magnetism of an atom refers to its electronic configuration. A diamagnetic atom is an atom whose electrons are all paired.

A paired electron is an electron that occurs in pairs in its orbital shell.

At their respective ground state, the electronic configuration of the given elements are as follows:

The electronic configuration of magnesium is 1s²2s²2p⁶3s².  As such its a diamagnetic atom.

The electronic configuration of Potassium is 1s²2s²2p⁶3s²3p⁶4s¹. Hence, Potassium has one unpaired electron in its outermost shell.

The electronic configuration of Chlorine is 1s²2s²2p⁶3s²3p⁵. Hence, Chlorine has one unpaired electron in its outermost shell.

The electronic configuration of Cobalt is 1s²2s²2p⁶3s²3p⁶3d⁷4s². Hence, the unpaired electrons of Cobalt in its outermost shell are three.

Therefore, the atoms that are diamagnetic in the ground state is magnesium.

Learn more about diamagnetic atoms here:

brainly.com/question/18865305?referrer=searchResults

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2 years ago
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