Difference between NaCl(l) and NaCl(aq)

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dentwannabe

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Ok, I have a question...
In a question that asks which is NOT a good conductor of electricity,

a. NaCl (aq)
b. NaCl (s)
c. NaCl (l)

the answer is NaCl (s)

Why??
I thought solids are good conductors of electricity.

And how is liquid NaCl a good conductor??? Doesnt NaCl have to dissociate in aqueous solution to yield electrolytes to be a good conductor??

I hate these questions. if anyone can help i'd appreciate it.
thanks

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dentwannabe said:
Ok, I have a question...
In a question that asks which is NOT a good conductor of electricity,

a. NaCl (aq)
b. NaCl (s)
c. NaCl (l)

the answer is NaCl (s)

Why??
I thought solids are good conductors of electricity.

And how is liquid NaCl a good conductor??? Doesnt NaCl have to dissociate in aqueous solution to yield electrolytes to be a good conductor??

I hate these questions. if anyone can help i'd appreciate it.
thanks

Ionic solids are not good conductors of electricity. I think the difference between liquid and aqueous is that liquid has a lot more NaCl then water as compared to aqueous NaCl. Liquid could also mean melted NaCl.
 
liquid is pure, melted NaCl. aqueous is when it's dissolved in water.

only metal (conductor) and semicondutor are good conductor in the solid state because electron can more freely about the solid.

a salt is non metallic, it's made of Na+ & Cl-. The charges here are not mobile in solid state. electrons are held tightly by Cl- (electronegativity 3.0), as a result, not electron flow & no conduction.
 
dentwannabe said:
Ok, I have a question...
In a question that asks which is NOT a good conductor of electricity,

a. NaCl (aq)
b. NaCl (s)
c. NaCl (l)

the answer is NaCl (s)

Why??
I thought solids are good conductors of electricity.

And how is liquid NaCl a good conductor??? Doesnt NaCl have to dissociate in aqueous solution to yield electrolytes to be a good conductor??

I hate these questions. if anyone can help i'd appreciate it.
thanks


Given the choices, I think NaCl(s) is the worst conductor and NaCl(aq) is the best conductor. We have ions not a metal sheet such as Ag, Au, etc. Ions are better conductors in aquous solutions.
 
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gatszu said:
liquid is pure, melted NaCl. aqueous is when it's dissolved in water.

only metal (conductor) and semicondutor are good conductor in the solid state because electron can more freely about the solid.

a salt is non metallic, it's made of Na+ & Cl-. The charges here are not mobile in solid state. electrons are held tightly by Cl- (electronegativity 3.0), as a result, not electron flow & no conduction.

👍

listen to this person, he knows his stuff 👍

good job gatzu - i couldn't have explained it any better myself! 😉
 
gatszu said:
liquid is pure, melted NaCl. aqueous is when it's dissolved in water.

only metal (conductor) and semicondutor are good conductor in the solid state because electron can more freely about the solid.

a salt is non metallic, it's made of Na+ & Cl-. The charges here are not mobile in solid state. electrons are held tightly by Cl- (electronegativity 3.0), as a result, not electron flow & no conduction.

Yes, that's a perfect, clear explanation...what did you get on your DAT? 👍
 
gatszu said:
liquid is pure, melted NaCl. aqueous is when it's dissolved in water.

only metal (conductor) and semicondutor are good conductor in the solid state because electron can more freely about the solid.

a salt is non metallic, it's made of Na+ & Cl-. The charges here are not mobile in solid state. electrons are held tightly by Cl- (electronegativity 3.0), as a result, not electron flow & no conduction.

thanks everyone, and gatszu, thanks for this explanation.. really clears it up.
 
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