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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.

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1answer
332 views

Why does hydrolysis of OF2 give a neutral solution?

I found this equation on the internet for the hydrolysis of $\ce{OF2}$: $\ce{OF2 + H2O -> HF + O2}$. So, according to me, $\ce{HF}$ must make generate an acidic instead of neutral solution. But ...
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61 views

What are the following equations called?

Our teacher was writing out the following ways of expressing redox and she used a particular term for what these equations are called. When we write out the following what is this called? Its a way to ...
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47 views

Are nitrogen oxides always radicals?

Some reactions between nitrogen oxides and ozone can be the following: $$NO\cdot(g) + O_3(g) \rightarrow NO_2\cdot(g)+O_2(g)$$ $$NO_2\cdot(g) + O\cdot(g) \rightarrow NO\cdot(g)+O_2(g)$$ Where the $...
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833 views

How many hydrogen bonds are formed by water and by HF?

How many hydrogen bonds are possible for $\ce{H2O}$, given that oxygen has two lone pairs? Is it 4 or 2? Related: why is it that HF forms only 1 hydrogen bond, given that HF has three lone pairs?
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130 views

Help regarding stereochemically inactive s orbital [duplicate]

Author JD Lee says in his book, Inorganic Chemistry The dipole moment of $\ce{XeF6}$ is approximately = $0$ because the lone pair is present in the stereochemically inactive s orbital. What is ...
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571 views

Beryllium hydride violates the octet rule [duplicate]

Beryllium hydride does not obey the octet rule. Isn't this impossible, unless there are more elements comprising the molecule?
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1answer
151 views

Is there a positive radical Aurous, Au (x+)?

Is there a positive radical Aurous, $\ce{{Au}^{x+}}$? If yes what is the value of x? We have Auric as $\ce{{Au}^{3+}}$.
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28 views

What ratio of bicarb to sugarcane juice with a pH level of 4.5-5.5 to neutralize pH level? [closed]

I am thinking of adding baking soda to sugarcane juice to eliminate the fruity acid that is present. The pH of sugarcane juice ranges from 4.5-5.5. I wonder how much baking soda should I incorporate ...
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1answer
40 views

How to predict whether a salt will act as an acid or as a base in aqueous medium? [closed]

How to would we know if a salt such as $\ce{CO_2}$ reacts acidic or basic in water. The explanation I see everywhere is that you have to see the acid and base that makes up the salt, in the case of $\...
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1answer
57 views

Reaction of coloured metal complexes with water and sulfuric acid [closed]

Reaction of coloured metal complexes with water and sulfuric acid I recently started researching the coloured compounds made from transition metals focusing on one with oxidation state II, so Mn,Fe,...
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2answers
48 views

Is this balanced redox equation correct? [closed]

I'm trying to balance an equation using oxidation numbers $\ce{MnO4^- + H+ + Cl- -> Mn^2+ + Cl2 + H2O}$ my suggestion: $\ce{MnO4- + 8H+ + 5Cl- → Mn^2+ + 2.5Cl2 + 4H2O}$ the 2.5 $\ce{Cl2}$ is ...
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171 views

T-shaped and Seesaw geometry hybridization

Why are the filled orbitals s and px (in the T-shaped case) also part of the hybrid orbitals of the central atom in sp3d hybridization? In other words, why should the hybrid orbital not be a p3d, for ...
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345 views

Extraction of metals using electrolysis

I came across a question that goes as: The electrolytic method of reduction is employed for the preparation of metals that are: Less electropositive Moderately electropositive Highly ...
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1answer
130 views

Is there any obvious relation between sodium bicarbonate and ammonia; (how) can sodium bicarbonate be involved in producing ammonia?

Using sodium bicarbonate as a deodorant sometimes can produce a strong ammonia smell. Is there some obvious chemical explanation for this?
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425 views

How to find the bond order in delocalized pi bonding of more than two atoms? [duplicate]

J.D Lee has written down some rules for calculating the bond order. I have no difficulty following step 1 and 2. It's easier to work with an example so I'll highlight my issues with step 3 , 4 ...
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2answers
424 views

Does titanium(II) oxide conduct electricity? [duplicate]

In my book, it is given that $\ce{TiO(s)}$ is an electrical conductor. But I'd think that since $\ce{TiO(s)}$ is ionic and in solid state, it shouldn't conduct electricity. So, why does it conduct ...
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75 views

What are the molar and mass concentrations of 18% HCl? [closed]

A solution of hydrochloric acid of mass fraction $\pu{18.0\%}$ has a density of $\pu{1.0878 g cm-3}$. What are the molar and mass concentrations of this solution? I got $\pu{5.37e-3}$ and $\pu{195.8}$...
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110 views

Should I include water of crystallisation in the product of a precipitation reaction with silver nitrate?

I've deduced that a certain compound has an ionization isomerism. I just want to know which of the following reactions is correct. I think this one is the more likely: $$\ce{[Cr(H2O)5Cl]Cl2 \cdot ...
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1answer
58 views

How would we know if an interhalogen compound would be a gas/liquid at a particular temperature? [closed]

Ex- how can we understand that ClF is a gas @ 298K? Is there some logic behind it? Please explain.
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1answer
1k views

How does barium chloride identify sulfate ions?

What is it about barium chloride specifically that makes it able to form a precipitate with sulfate ions. What is the chemistry behind this?
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1answer
1k views

How to separate two aqueous salts?

I have a mixture of two aqueous salts, $\ce{Cr(OH)3}$ and $\ce{NaNO3}$ and I'd like to separate them and purify the $\ce{Cr(OH)3}$ in order to make $\ce{KCr(SO4)12 . H2O}$ (Chromium Alum). Does any ...
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1answer
806 views

How to state something as strong or weak oxidising agents?

It is said that conc. $\ce{H2SO4}$ is a strong oxidising agent. Why is it regarded as strong? In case of acids, we say something that fully ionizes in an aqueous solution is a strong acid. But what ...
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1answer
274 views

How is square planar geometry possible in metal complexes?

I came across this statement and I don't understand what it meant by it: "Square planar geometry is favoured by ligands that can form pi bonds by accepting electrons from metal atoms or ions." How ...
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1answer
13 views

Electrophilic base / nucleophilic acid / basic electrophile / acidic nucleophile [closed]

What I was understanding is that all bases are nucleophiles and acids are electrophiles means the condition for them is same and all nucleophiles are basic and all bases are nucleophiles and same for ...
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1answer
57 views

Question About Reversible Reactions and Batteries

So my book says that the batteries we have considered so far( Daniell cells) are low life span, because they reach equilibrium too fast. In the next paragraph, it says they are also made by ...
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1answer
38 views

How can I prepare two phosphate buffer of different concentrations but give same pH? [closed]

How is it that buffers of different compositions can have the same pH? For example, it is possible to prepare 0.01 M phosphate buffer of pH 7.0 and 0.1 M phosphate buffer of pH 7.0? How? I used ...
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1answer
66 views

Why anhydrous copper sulphate is acidic in nature but pentahydrate copper sulphate is amphoteric? [closed]

$\ce{CuSO4}$ is acidic salt because it is made up of $\ce{Cu(OH)2}$ (weak base) and $\ce{H2SO4}$ (strong acid). But why $\ce{[CuSO4.4H2O]H2O}$ is amphoteric?
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40 views

How could I prepare Iron(III) arsenate (FeAsO4)?

I have no idea in which conditions this compound is formed and would like to find out any / different ways it can be prepared (any easy way not requiring expensive equipment would be great).
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2answers
43 views

Chemical reaction

Consider the following Ca(OH)2 + 2NH4Cl → CaCl2 + 2NH3 + 2H2O (Source: https://chemiday.com/en/reaction/3-1-0-440) It appears to be double displacement reaction as CaCl2 is formed, but it’s not as ...
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2answers
80 views

Why can't a weaker acid protonate the conjugate base of a stronger acid?

So I've heard that, supposedly, a weaker acid cannot protonate the conjugate base of a stronger acid to give that stronger acid. For instance, adding ethanoic acid to sodium sulphate will not result ...
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1answer
36 views

Periodic Table and Atomic Radius

Well Wikipedia says that the atomic radius is lowered for elements in a group closer to noble gases (same row). It also says that those elements want to keep their valence electrons more than metals, ...
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1answer
37 views

How the unreactivity of lithium hydride makes it useful in synthesis of other useful hydrides? [closed]

I have seen the following chemical property of lithium hydride in the textbook which seems to be incomplete: Lithium Hydride is rather unreactive at moderate temperatures with ${O_2}$ or ${Cl_2}$...
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1answer
468 views

Questions on Neutral oxides

Neutral oxides, are non metal oxides which are neither acidic nor basic. I have noticed a pattern for neutral oxides which I am unsure actually holds true. $\ce{CO}$, $\ce{H2O}$, $\ce{NO}$ and $\ce{...
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1answer
119 views

which one is the correct statement of “Law of definite proportion”? [closed]

according to my genius Teacher ' this law state that "the composition of a compound in terms of atoms (Not Mass) remains constant". His Proof: H2O and D2O are similar compounds (because H and D have ...
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1answer
328 views

Why do large cations stabilise large anions and small cations stabilise small anions? [closed]

I see this trend from enthalpy change of decomposition data, though I struggle to find a decent explanation for why.
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1answer
31 views

Valence Electrons of Molecules

Why do we say that hydrogen has 1 valence electron? Hydrogen (H2) is a molecule so how does this make sense?
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1answer
77 views

Which is stronger ? Picric acid or phoshoric acid

I would like to have clarity as to which acid is the stronger acid; picric acid or phosphoric acid. Because different sources are giving me different answers
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1answer
87 views

Memorizing chemical equations [closed]

Is there's an easy or at least a practical solution for memorizing chemical equations? I'm currently in grade 12 and we're studying a whole chapter about Iron and how to prepare it, starting from the ...
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1answer
271 views

Balancing the reaction of nitric acid with zinc using oxidation number method

In a previous question, there was confusion relating to what this "oxidation number method" is. So I will illustrate that before my question. Write the skeleton equation representing chemical ...
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1answer
84 views

Nickel-63 and surge protector / voltage regulator

I've read that nickel-63 is used in surge protectors and voltage regulators. What is it about nickel-63 that makes it particularly suitable for those applications?
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1answer
53 views

Coloured salts for silica garden [closed]

I recently thought about making a silica garden. I have copper sulphate and nickel sulphate right now. What other salts would be the best to put along with these two? Also should I buy sodium silicate ...
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1answer
411 views

Why does cobalt have no negative charge?

I would like to know why cobalt cannot have a negative charge (or at least why a negative charge for cobalt isn't typical). I am not sure where I have gone wrong in my reasoning. The electronic ...
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1answer
643 views

Why are ammonium chloride and ammonium hydroxide used in calcium salt detection?

On adding $\ce{ (NH4)2CO3 }$ solution to $\ce{ Ca^{2+} }$ aqueous salt solution, $\ce{ CaCO3 }$ is formed as a white precipitate, which confirms the presence of the cation. While doing the test in my ...
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2answers
421 views

Molecular formula and decimal number

Today I did some stoichiometry exercise about finding the ratio between the elements. What confused me was that while the ratio was right, but it was decimal. Ex. Reducing $\pu{0.800 g}$ of lead ...
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1answer
182 views

Which solution is more conductive

Which of the following solutions is more conductive: 1) 0.1 M sodium hydroxide and 0.1 M hydrochloric acid mixture (effectively NaCl?) 2) 0.1 M sodium hydroxide and 0.1 M acetic acid mixture (...
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1answer
594 views

Reaction between silver(I) hydroxide and an alkali [closed]

I've read about this in a booklet, but I can't find its stepwise reactions or its derivation: $$\ce{AgOH + NaOH -> Ag2O}$$ And how does a base ($\ce{AgOH}$) react with another base ($\ce{NaOH}$)? ...
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1answer
488 views

Determination of magnesium sulfate hydrate formula [closed]

A hydrate of magnesium sulfate has a mass of $\pu{12.50 g}$.This sample is heated until no water remains. The anhydrous $\ce{MgSO4}$ has a mass of $\pu{5.30 g}$. Find the formula of the hydrate. What ...
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1answer
1k views

Why does Bi show inert pair effect and not Sb?

The 6s orbital electron pair is strongly attracted by the nucleus due to the poor shielding effect of 4f and 5d orbitals. However there are other filled orbitals that shield the nucleus. In case of 5s ...
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2answers
3k views

Solubility of Alkali Metal Chlorides

Why does Potassium Chloride less soluble than Sodium Chloride in water, isn't it supposed to be other way round? Since Potassium Chloride would be more ionic than Sodium Chloride?
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1answer
170 views

Ammonia sigma bonds p character

Why does ammonia's sigma bonds to H have more p character than let's say ethane. I am guessing it has something to do with the effect the lone pair has on bond lengths and angles, but not quite sure ...