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Why does 0.02M acetic acid solution have lower electrical conductivity than 0.02 M HCl?
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When some ionic compounds dissolve not all of their bonds dissociate. what kind of conductivity would you expect such a solution to have?
It will be great, because the charge of the compound that matters not just if the substances are bounded or not!
Which is more conductive between glacial acetic acid and 6 M acetic acid?
Conductivity of glacial Ac.ac. is lower, because there are (almost) none free protons. To get them 'free' to conduct some water is needed.
Is the pH of 25 acetic acid higher than 0.25 hydrochloric acid?
There is no substance with a pH of 25. But the lower the pH, the more acidic a solution.
Why ethanoic acid ahas a lower conductivity than hydrochloric acid?
Formic acid is a smaller molecule as compare to acetic acid so polarity is working in small area and O-H bond is more polar HCOOH, in acetic acid the additional CH3- group is an electrons donor group so O-H bond is little bit stronger and less polar so it is weaker acid.
Why does a 1 molar solution of sulfuric acid have lower pH than 1 molar solution of acetic acid?
Sulfuric acid is a stronger base, meaning it more completely dissociates. Acetic acid does not completely dissociate, and therefore does not change the concentration of hydrogen ions in solution to the extent that sulfuric acid does. Since pH = -log[Hydrogen ions], sulfuric acid will have a lower pH.
What large materials are good thermal conductors and good electrical conductors?
from wiedemann franz law we know that thermal conductivity/electrical conductivity=constant that is sigma inv. proportional to k thus a material having large electrical conductivity has low thermal conductivity and moreover we know R=pL/A p=RA/L 1/P=L/RA i.e lower area means greater conductivity(electrical) and lower thermal conductivity
When some ionic compounds dissolve not all of their bonds dissociate. what kind of conductivity would you expect such a solution to have?
It will be great, because the charge of the compound that matters not just if the substances are bounded or not!
Which is more conductive between glacial acetic acid and 6 M acetic acid?
Conductivity of glacial Ac.ac. is lower, because there are (almost) none free protons. To get them 'free' to conduct some water is needed.
What properties make copper a good choice for making electrical wire?
High electrical conductivity and a lower price than silver, the only more conductive metal.
Is the pH of 25 acetic acid higher than 0.25 hydrochloric acid?
There is no substance with a pH of 25. But the lower the pH, the more acidic a solution.
Why ethanoic acid ahas a lower conductivity than hydrochloric acid?
Formic acid is a smaller molecule as compare to acetic acid so polarity is working in small area and O-H bond is more polar HCOOH, in acetic acid the additional CH3- group is an electrons donor group so O-H bond is little bit stronger and less polar so it is weaker acid.
What does it mean for a substance to be semiconductor?
A substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities. :) Hope that helped;)
Can iron be in a wire?
Yes, iron could be made into a wire. However, because of its susceptibility to oxidation and lower conductivity than copper, this metal is not commonly used for electrical wires.
Why does a 1 molar solution of sulfuric acid have lower pH than 1 molar solution of acetic acid?
Sulfuric acid is a stronger base, meaning it more completely dissociates. Acetic acid does not completely dissociate, and therefore does not change the concentration of hydrogen ions in solution to the extent that sulfuric acid does. Since pH = -log[Hydrogen ions], sulfuric acid will have a lower pH.
How do i confirm that this water is demineralized water?
The commonest test is to check the electrical conductivity between two electrodes. Pure water has very poor conductivity, but the conductivity improves as more ions are dissolved in it. Sea water has a conductivity of around 5 S/m (Siemens per metre) Drinking water has a conductivity of 0.005 - 0.05 S/m . Ultra-pure water has a much lower conductivity of 5.5 x 10-6 S/m - a million times smaller than that of sea water.
How is pH related to acid strength?
pH of a weak will be close to 7 (7 or below). the lower the pH is, the more acetic solution is. pH of 7 is neutral anything below that is acetic anything above it is basic the further away you go from seven the stronger the acid or base is
What combination of factors is most suitable for increasing the electrical conductivity of metals?
Resistivity is a constant for any particular material, and independent of that material's physical dimensions or shape. However, it does vary with temperature which is why resistivity is always quoted at a particular temperature. Variations in resistivity due to temperature change is the reason that the resistance of a material varies with temperature. In SI, resistivity is expressed in ohm metres.
