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How does the concentration of H+ ions in HCl change as the pH changes?

What is the concentration of H+ ions in a solution of hydrochloric acid with pH 2.5? Using the definition of pH $= -\log(\frac{[\ce{H+}]}{\pu{1 mol L-1}})$, you can easily calculate this as long as ...
Karsten's user avatar
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How does the concentration of H+ ions in HCl change as the pH changes?

This question changes a simple definition of: [pH = the negative logarithm of the hydrogen ion activity in M/L], into a puzzle or possibly an IQ test. Knowing nothing about pH the relationship between ...
jimchmst's user avatar
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What happens to acids/bases left out overnight?

Yes that's what happened. From my experience, if you want accuracy you need to use the NaOH solution within an hour. Depends on the [NaOH] and the volume/[] of HCl you're titrating. The smaller [NaOH],...
PhDChemicalEngineering's user avatar
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Reaction between copper rod and carbon rod in hydrochloric acid

If no air and no oxygen gas is involved in this system, there is no reaction : copper should not react. If oxygen $\ce{O2}$ is present (for example in solution), the reaction proposed by Poutnik ...
Maurice's user avatar
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Reaction between copper rod and carbon rod in hydrochloric acid

The carbon as an inert electrode can serve as the conductor for an oxygen electrode due dissolved aerial oxygen. But the reaction $$\ce{2 Cu(s) + 4 H+(aq) + O2(aq) -> 2 Cu^2+(aq) + 2 H2O(l)}$$ ...
Poutnik's user avatar
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How to make a thin layer of crystalline barium titanate on copper substrate?

I don't think your first mentioned method is possible due to a few reasons : The hydrofluoric acid we're talking about is highly reactive and so, corrosive. It can etch and in fact, dissolve several ...
Anjankumar's user avatar
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Hydrogen–deuterium exchange in 1,4-benzoquinone

It requires a lot of energy to remove the hydrogen atoms from the $sp^2$ hybdridised carbon atoms (involved in double bonding). So there's not really any hydrogen atom which is readily available for ...
afrin's user avatar
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2 votes

pH in a buffer of Glycin and HCl

Glycine in aqueous neutral solution (i.e. add water to glycine) occurs as zwitter ion: The $\mathrm{p}K_\mathrm{a}$ of the ammonium group is 9.6. The $\mathrm{p}K_\mathrm{a}$ of the carboxylic acid ...
Karsten's user avatar
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