Chemistry, 11.10.2019 00:10 look26goingjbgy

Each of the following reactions shows a solute dissolved in water. classify each solute as a strong electrolyte, a weak electrolyte, or a nonelectrolyte. c(l)→c(aq) ab(aq)⇌ a+(aq)+b−(aq) mn(aq)→m+(aq)+n−(aq) xz(s)→x+(aq)+z−(aq) p(s)→p(aq)

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Answer from: anthonybowie99

Answer :

Strong electrolyte solutes are MN and XY.

Weak electrolyte solute is AB.

Non-electrolyte solutes are C and P.

Explanation :

Strong electrolyte : It is defined as the species that can completely dissociates into ions in its aqueous solution.

Weak electrolyte : It is defined as the species that is partially dissociates into ions in its aqueous solution.

Non-electrolyte : It is defined as the species that does not dissociates into ions in its aqueous solution.

As we are given the following reactions. Now we have to determine the solute as a strong electrolyte, a weak electrolyte, or a non-electrolyte.

(1) $C(l)\rightarrow C(aq)$

In this reaction, there is no dissociation into ions. So, It is a non-electrolyte.

(2) $AB(aq)\rightleftharpoons A^+(aq)+B^-(aq)$

In this reaction, the partial dissociation into ions and equilibrium arrow represent the incomplete dissociation. So, it is a weak electrolyte.

(3) $MN(aq)\rightarrow H^+(aq)+CN^-(aq)$

In this reaction, the complete dissociation into ions and only onside arrow represent the completely dissociated. So, it is a strong electrolyte.

(4) $XZ(s)\rightarrow X^+(aq)+Z^-(aq)$

In this reaction, the complete dissociation into ions and only onside arrow represent the completely dissociated. So, it is a strong electrolyte.

(5) $P(s)\rightarrow P(aq)$

In this reaction, there is no dissociation into ions. So, It is a non-electrolyte.

Answer from: Quest

definition

entropy is a measure of the randomness or the extent of disorder of a chemical process.

enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

entropy is measured in joule per kelvin (jk⁻¹) whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

Answer from: Quest

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