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Unanswered Questions

8,724 questions with no upvoted or accepted answers
-5 votes
2 answers
283 views

If Standard Reduction Potential and Standard Oxidation potential are equal in magnitude and opposite in sign?

If Standard Reduction Potential(SRP) and Standard Oxidation potential(SOP) are equal in magnitude and opposite in sign , Then as per this As we know SRP of H2O is -0.83 V as per this SOP of H2O should ...
-5 votes
2 answers
68 views

Can you infer toxicity of an ionic compound based on the toxicity of its ions in other configurations?

Suppose I have two ionic compounds: "NaY" and "XCl". If these were both 'safe' to eat, would it be true that ...
-5 votes
1 answer
149 views

Functional group for glycine that had being titrated (i) HCl (ii)NaOH

i am kinda confused with this question. They asked for the functional group of (i) glycine hydrochloride (ii) glycine that titrated with NaOH. I did take a look many times especially for glycine ...
-5 votes
1 answer
262 views

Why Silica and normal alumina can damage or destroy many metal complexes?

in case of organic ligand there r several techniques for purification,but in case of metal complex(Cr,Mn,Fe,Co) with schiff base , i have not seen any literature for the purification of them except ...
-5 votes
2 answers
185 views

Percentage of yield reaction question

By bubbling $\ce{Cl2}$ in a solution containing $176.6~\mathrm{g}$ of $\ce{MgBr2}$ are obtained [sic!] $135~\mathrm{g}$ of $\ce{Br2}$. However, the yield of this reaction is not $100~\%$. How many ...
-5 votes
1 answer
1k views

Preparation of potassium cyanide from potassium ferrocyanide via HCN

Does anyone have any experience with the preparation of potassium cyanide from potassium ferrocyanide via $\ce{HCN}$ method? I did some math and am going to proceed eventually, any advice would be ...
-5 votes
1 answer
643 views

Neutralization Reaction problem

$\frac x4$ equivalent of $\ce{NaAl(OH)2CO3}$ is neutralized by $x$ equivalent of $\ce{HCl}$ Milliequivalent of $$\ce{HCl}=\mathrm{{160}\times{0.25}\times{1}\times{40}}/100=16$$ $1$ is for one $\ce{H+...
-5 votes
1 answer
127 views

Exceptions in ionization energies of Oxygen and Nitrogen

We all know that it is difficult to remove an electron from atoms that are half-filled or fully filled. Thus they have higher ionization energy. But today my teacher said that $N^{-3}$ has a lower ...
-8 votes
4 answers
1k views

In school, I learnt that Potassium is the most reactive element in the reactivity series. I thought it was Francium?

In school, I learnt that Potassium is the most reactive element in the reactivity series. In the periodic table, the further you go down the more reactive the elemnt is. If this is true, then shouldn'...

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