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blondinia
15 days ago
5

Based on the entries in the following table, which element is most commonly bonded to the acidic hydrogen? table some weak acids

in water at 25 ∘c

Chemistry
2 answers:
lorasvet [2.5K]15 days ago
7 0
From the table presented, C₆H₅O⁻ is the most frequently attached to the acidic hydrogen, due to its lower Ka (<span>acid dissociation constant). Chemical reaction: C₆H₅OH(aq) ⇄ C₆H₅O⁻(aq) + H⁺(aq). Ka = [C₆H₅O⁻] · [H⁺] / [C₆H₅OH]. The concentration of hydrogen ions in a phenol-water solution is very low.</span>
castortr0y [2.7K]15 days ago
6 0
The answer is C₆H₅O⁻: It is primarily bonded to the acidic hydrogen; O2 is also significantly connected to the acidic hydrogen. The explanation: Referring to the table below, we observe that Phenol has the minimum Ka (acid dissociation constant). For the chemical process: C₆H₅OH(aq) ⇄ C₆H₅O⁻(aq) + H⁺(aq), The Ka expression is written as

. Consequently, a solution of phenol in water exhibits a very low equilibrium concentration of H ions [H+], hence C₆H₅O⁻ emerges as the element predominantly bonded to the acidic hydrogen.

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what is the net ionic equation with its physical states? (NH4)2CO3(aq)+Ca(ClO4)2(aq)⟶CaCO3(s)+2NH4ClO4(aq)
lions [2653]

Answer: The net ionic equation is CO_3^{2-}(aq)+Ca^{2+}(aq)\rightarrow CaCO_3(s)

Explanation:

A double displacement reaction involves the exchange of ions. Chemicals that dissolve in water are marked with the symbol (aq), while those that do not dissolve and remain solid are shown with (s) after their formulas.

(NH_4)_2CO_3(aq)+Ca(ClO_4)_2(aq)\rightarrow CaCO_3(s)+2NH_4ClO_4(aq)

The ion-based representation of the equation is:

2NH_4^+(aq)+CO_3^{2-}(aq)+Ca^{2+}(aq)+2ClO_4^{-}(aq)\rightarrow CaCO_3(s)+2NH_4^{+}(aq)+2ClO_4^-(aq)

"Spectator ions" are the ions that do not participate in the chemical reaction, appearing on both sides of the equation in ionic form.

Ammonium and chlorate ions are present on both sides; thus, they do not factor into the net ionic equation.

Therefore, the net ionic equation is:

CO_3^{2-}(aq)+Ca^{2+}(aq)\rightarrow CaCO_3(s)

6 0
26 days ago
A laboratory analysis of an unknown sample yields 74.0% carbon, 7.4% hydrogen, 8.6% nitrogen, and 10.0% oxygen. What is the empi
Tems11 [2403]
Assuming we have a 100g sample, the mass of each element is as follows:
C: 74 g
H: 7.4 g
N: 8.6 g
O: 10 g
Next, we calculate the moles of each by dividing the mass of each element by its molar mass:
C: (74 / 12) = 6.17
H: (7.4 / 1) = 7.4
N: (8.6 / 14) = 0.61
O: (10 / 16) = 0.625
Now, we take the smallest value to determine the ratio:
C: 10
H: 12
N: 1
O: 1
Thus, the empirical formula can be expressed as
C10H12NO
3 0
1 month ago
Four students are developing a model to illustrate covalent and ionic substances dissolving in
Anarel [2605]

Students dealing with ionic bonds comprehend better how to convey what the model should showcase.

Explanation:

  • Upon dissolving ionic compounds in water, the compounds separate into their constituent ions via a process called dissociation.
  • The ions become attracted to water molecules, which carry a polar charge.
  • If the pull between the ions and the water molecules is strong enough to disband the ionic bonds, the compound dissolves.
  • The ions disperse in the solution, each surrounded by water molecules to inhibit reattachment.
  • The ionic solution forms an electrolyte, allowing it to conduct electricity.
  • In contrast, while covalent compounds do dissolve in water, they separate into molecules, not individual atoms.
  • Water acts as a polar solvent, yet covalent compounds are generally nonpolar.
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5 0
26 days ago
Which of the options below show typical bonding patterns for a neutral nitrogen atom in a molecule or polyatomic ion?
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More information is needed, but in general, a polyatomic ion consists of multiple atoms bonded together, often with instability that affects their bonding patterns.
7 0
1 month ago
Does Na2 gas posses metallic character? Explain your answer..​
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Clarification:

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Metallic bonding only manifests when several atoms cluster together. Such aggregates may not tend to be stable, as larger masses of material typically exhibit greater stability thermodynamically. Therefore, they often merge until a significant metal chunk is formed.

In some ways, metallic bonding can be considered a variant of covalent bonding, but it is more communal—delocalized across numerous atoms—and electron deficient (there are more energy states than available electrons, which contributes to conductive traits). This implies that the term “metallic bond” might appear contradictory, akin to referring to a forest with a single tree.

Engage me in comments

4 0
29 days ago
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