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Results tagged with acid-base
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user 48509
This tag should be applied to questions concerning acid and base reactions. An acid is capable of donating a hydron/ proton (Brønsted acid) or capable of forming a covalent bond with an electron pair (Lewis acid). A base on the other hand is a chemical species/ molecular entity having an available pair of electrons capable of forming a covalent bond with a hydron/ proton (Brønsted base) or with the vacant orbital of some other species (Lewis base).
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Acidity/basicity of oxides across the periodic table
It is one of the characteristics of the metals as for electrical conductivity, heat conductivity, mechanical properties. All these basically originate from the outer electrons to be "loosely" bound to …
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1
vote
What's this mystery acid?
I cannot tell you what acid is in the product.
However burning and corrosion of skin and living tissues is not necessarily and directly due to fast acid/base reactions.
It involves reaction such as …
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1
vote
Does diluting the titration flask change the molarity
The answer to the title question is obviously YES.
Regarding the test quiz:
It is simply that titration involves equivalents of substance, not their concentration. The amount of NaOH to be neutralis …
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2
votes
What does it mean to say that a strong base is only slightly soluble?
I have to admit that jumping between the various parts of the question as well as the editing/comments almost confused me, or at least gave me some discomfort. So I try to clarify the situation althou …
- 3,656
1
vote
Is "Sulfuric acid... makes a poor electrolyte... very little of it will dissociate into ions...
The apparent contradiction is due to the fact that none are absolute statements and to a misunderstanding of the term electrolyte.
The dissociation of sulphuric acid is concentration dependent, so mor …
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12
votes
Can you meassure a negative pH value with a pH meter?
You are most likely getting an inaccurate value. As anticipated in Poutnik's comment above is difficult to reliably measure a $\mathrm{pH}$ of very acidic solution but the $\mathrm{pH}$ scale is indee …
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2
votes
How does % purity on household products work?
I would take it here and in general as mass percentage. Expressing conc as % always leads to doubts although it is originally intended as mass to mass ratio. The good practice should be stating m/v w …
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