Questions tagged [conductivity]

A material's ability to conduct electric current or thermal energy by any means.

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3answers
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Conductivity as a function of acid concentration

I have conducted an experiment measuring the conductivity of both hydrochloric acid and sulfuric acid in solution respectively, with varying concentration. Wikipedia as well as a question on the site ...
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3answers
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Can all water soluble ionic compounds conduct electricity?

I'm taking a first yer chemistry course at University, i am reading alot of contradicting things. Some people say that ionic compounds that are soluble in water are ALWAYS electrically conductive, ...
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3answers
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Why are ionic compounds bad conductors of electricity in solid state?

I understand the fact that ionic compounds are good conductors of electricity in molten state. But why aren't they good conductors in solid state. Cannot ions vibrate about their mean position and ...
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3answers
124 views

Vacuum good inside a box?

I have no clue whatsoever about Chemistry on a academic point of view. We wish to transport some goods. Let's say we vacuum some of those goods, by doing like so: We place those goods on a box, we ...
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3answers
22k views

What is the unit of molar conductivity? [closed]

Could you explain what is unit of molar conductivity along with derivation
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1answer
65 views

A chemical compound with these conditions? [closed]

I am searching for a chemical compound which meets these five conditions: slightly soluble in water layered strutcture ionic conductor thermochromism lead must be a part of it.
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1answer
2k views

Conductance and Conductivity of acid base titration?

I have a question with $\ce{NaOH}$ initially present with given concentration and conductivity, then an equal volume of given concentration of HCl is added and the final conductivity is given, again a ...
2
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2answers
19k views

Graphene Vs Copper?

I was wondering about the amazing conductive properties of graphene, lets assume a large copper bar that is 10 kg, current of 1kA and probably more can flow in it, what about graphene? It certainly ...
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0answers
684 views

Is superglue a good thermal insulator?

How good of a thermal insulator is superglue compared to other materials like ceramics, plastics, and metals? I know this might not seem like a chemistry question, but I was hoping someone here could ...
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1answer
966 views

Electric conductivity vs potential

What is the relationship between electric potential and conductivity? For example, gold has a more negative electric potential than silver (-1.100 vs -0.800), but silver is a better conductor.
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2answers
375 views

What solvent would have the fewest ions?

We know that water auto-ionizes (to a rather small extent). My question is which solvent would have the fewest ions (or at least fewer ions than water). I'm thinking that perhaps some kind of ...
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1answer
519 views

Behavior of NaCl in water with electrodes

If I had some NaCl dissolved in water, it is conductive, so if I were to put two electrodes in the container (powered), what is causing the flow of electrons? Do the NaCl ionic bonds break and the ...
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1answer
5k views

Which is more conductive?

There are two choices. One is Nitric acid, and the other is phosphoric acid. The solution of each type of these acids has a concentration of 0.1 mole. I answer would be phosphoric acid, because each ...
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1answer
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What attributes cause a substance to be nonconductive or conductive

I understand what causes elements to be conductive or nonconductive. But what causes a substance say rubber to be nonconductive at a molecular level?
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1answer
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How strict is the “to excite electrons the energy must equal the energy state difference” fact?

We are always told that to excite an electron from one state to a higher energy states, for example from the valance band to the conduction band, the energy must equal the energy difference between ...
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4answers
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Examples of electronically conductive foods?

There are many foodstuffs that are ionically conductive (for example, anything moist and salty). What about foods that have a high electronic conductivity? The only thing I can think of would be ...
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2answers
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Calculating molar conductance of CaCl2

Ok, so the following question is given in my text book. Of the molar conductance value of $\ce{Ca^2+}$ and $\ce{Cl^-}$ at infinite dilution are respectively $118.88\times10^{-4}$ and $77.33\...
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1answer
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Trends for electrical conductivity?

Which element has the greatest electrical conductivity? (A) As (B) Ge (C) P (D) Sn I am unsure of how to approach this problem. Is there some sort of trend for electrical ...
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2answers
6k views

Can dust conduct electricity?

Just out of curiosity, can dust conduct electricity? The source of dust varies, is there any form of dust that can conduct electricity?
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2answers
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How well (or poorly) does natural leather insulate?

What is the general thermal conductivity of animal skin leather? I understand there are many different animal's skins (cow, sheep, buffalo, deer, pig), but in general, does natural leather insulate ...
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Sulfuric Acid Resistance / Conductivity

I diluted sulfuric acid in deionized water in order to get a 10% $\ce{H2SO4}$ solution. I was going to use this solution as a cathode of a porous sample to measure its electrical properties. However,...
27
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1answer
14k views

Electrical conductivity of graphite

On this Wikipedia page, the electrical conductivity of various materials are given in the third column ($\sigma \text{ (S/m) at 20}^\circ \text{C}$). I am interested in the entry for Carbon (graphite)...
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3answers
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Choice of doping elements in semiconductors

In a typical semiconducting material, we start with silicon (group IV) and introduce atoms of group V or group III depending on whether we are constructing an n- or p-type semiconductor respectively. ...
15
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1answer
387 views

How does conductivity work for non-redoxed ions?

Related (very similar, but here I want a mechanism) https://physics.stackexchange.com/q/21827/7433 By the Kohlrausch law, all ions contribute to the conductivity of an electrolyte. Now, as I ...