Questions tagged [inorganic-chemistry]

Inorganic compounds generally do not have C-H bonds, while organic compounds do have such bonds. The distinction between inorganic and organic chemistry, however, is far from absolute.

517 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
-1
votes
1answer
44 views

What is (if there is) the reaction between manganese chloride and oxygen when dry?

I had a chemistry lab and I did a error. I was supposed to make some $\ce{MnCl2}$ and then used fire to dry it but then some of it turned black, and I am supposed to quantify my error. So I am ...
-1
votes
1answer
2k views

Bond dissociation energy order for C-C,N-N,O-O & F-F single bond

I couldn't understand the trend of bond dissociation energy of various single bonds. Why C-C>N-N>F-F>O-O. I had mugged up the trend the now, and according to me BDE should continuously increasing ...
-1
votes
1answer
251 views

Why potassium chromate can be used as indicator in Mohr method?

Both silver chloride and silver chromate are insoluble, so why is that silver chromate is precipitated before silver chromate? Why wouldn't both red silver chromate and white silver chloride form at ...
-1
votes
1answer
305 views

Make KCN from ferrocyanide, K2CO3, and carbon

$$\ce{2K4Fe(CN)6 + 2K2CO3 + 1C -> 12KCN + 2Fe + 3CO2}$$ This reaction seems very logical. Does it actually occur? What temperature should be used for the reaction? $\pu{640^\circ C}$?
-1
votes
1answer
1k views

The preparation of 0.005 M Iodine Solution

The dissolution of iodine crystals with potassium iodide is very slow. To prepare a 0.005 M Iodine solution will require you keep the vessel until all crystals dissolve. With the low concentration and ...
-1
votes
1answer
2k views

Ions Na+ and Cl-

Fundamental question on ions: If, for instance, $\ce{Na}$ and $\ce{Cl}$ react to produce $\ce{NaCl}$ salt, then $\ce{Na^+}$ and $\ce{Cl^-}$ are obviously formed. What I don't understand is, for ...
-1
votes
1answer
60 views

Why atomic mass is taken in comparison?

The definition of atomic mass says that it is the mass of one atom of the element with respect to 1|12 of the mass of carbon-12 atom. My question is that why there is need to compare the atomic mass ...
-1
votes
1answer
103 views

Determine concentration of phosphate after copper(II) oxalate is precipitated

Solution with $\ce{Na3PO4}$ with $\pu{0.02 M}$ concentration and $\ce{Na2C2O4}$ with $\pu{0.03 M}$ concentration. I add excess $\ce{Cu(NO3)2}$ very carefully – tiny amounts. What will be my $\ce{PO4^...
-1
votes
1answer
293 views

electron counting for transition metal-oxo ligand compound

Using donor-pair method, how many electrons would an oxo ($O^{2-}$) ligand contribute? I cannot decide if it is 2 or 4.
-1
votes
1answer
39 views

How do I calculate for the solubility of Ca3(PO4)2 in Phosphoric Acid?

I know that the common ion effect will decrease the solubility of $\ce{Ca3(PO4)2}$ since Phosphoric acid has a same anion. However, phosphoric acid is a weak acid so I am really having a hard time ...
-2
votes
1answer
105 views

Why is helium considered as a non-metal?

How can helium be considered as a non-metal based on its chemical properties? Helium is a noble gas; it does not take part in chemical reactions under ordinary conditions. But non-metals tend to gain ...
-2
votes
1answer
64 views

Sulphur trioxide problem

I'm having minor difficulties solving this problem: How many grams of sulfur (VI) oxide can be derived from 8 g of sulfur and 6 g of oxygen? (S-32) I've tried to solve it this way: $\ce{2S + 3O2 -...
-2
votes
1answer
1k views

Structure of IO2F5(2-) dianion

This question came in my exam to draw the Structure of $\ce{[IO_2F_5]^2-}$ I am confused. Here's what I reasoned: Iodine will have hybridisation $\ce{sp^3d^3}$ so it will be pentagonal bi ...
-3
votes
0answers
47 views

What is the balanced equation for HNO3+Ag(NH3) 2)?(+ balanced charges)

I need to balance a chemical equation properly for tomo chem class. it is really urgent I appreciate all your help :) The chemical reaction involves a silver ammonia complex that reacts with nitric ...
-3
votes
1answer
547 views

How is ozone formation form oxygen **spontaneous**?

DeltaH for process is positive and deltaS is negative. Then by thermodynamics,deltaG for process must be positive at all temperatures. Then how is ozone formation spontaneous?
-5
votes
1answer
140 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
1answer
112 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 ...