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0 votes
1 answer
104 views

Ductless fume hood for dissolving aluminum foil in hydrochloric acid

I work at a food manufacturing plant and we use Tetra Pak packaging for our liquid foods. There is a layer of aluminum foil within the packaging material that we need to dissolve out of the package in ...
Andrew's user avatar
  • 11
-3 votes
2 answers
113 views

Powder left everywhere after solution was left to evaporate. What could it be?

I dissolved a coin made of silver and copper and probably other metals in nitric acid. I neutralized the solution with some sodium hydroxide and then added salt(NaCl) to make Silver Chloride. A white ...
randomuser38924's user avatar
1 vote
0 answers
146 views

Are there TLC stains for organo fluor compounds or anorg. fluoride that are useful for selecting the product containing fractions post purification

Are there TLC stains that work with fluoride or with organofluor compounds? I have a fluorinated phosphonic acid that does not stain with conventional means. I did research in many of the known and ...
raptorlane's user avatar
-4 votes
1 answer
357 views

If NaOH is a Brönsted-Lowry base then, what is its conjugate acid? [closed]

Brönsted-Lowry theory doesn't go against but adds to the Arrhenius theory on bases and acids. $\ce{NaOH}$ is an Arrhenius base because it releases hydroxide ions in water solution. NaOH is also a ...
A user132802's user avatar
1 vote
1 answer
216 views

Henderson-Hasselbalch equation and degree of dissociation

Is it possible to evaluate the degree of dissociation in unbuffered solutions, through the Henderson-Hasselbalch equation? For example: place acetic acid in a sodium hydroxide solution. After the ...
Luckenberg's user avatar
4 votes
1 answer
244 views

What results from the neutralization of copper citrate with Na2CO3

I found this question that describes PCB etching with citric acid. The answer to that question explains how hydrogen peroxide, salt, and citric acid can be used to ionize copper metal in water, which ...
KJ7LNW's user avatar
  • 165
9 votes
2 answers
1k views

Why are sulfites often ignored in soil studies?

From a document on soil chemistry that I am reading: The acid-base potential of a soil takes soil pH, total sulfur (sulfides and sulfates), and neutralization potential into account to determine the ...
Al Lelopath's user avatar
0 votes
1 answer
307 views

What is ionic reaction equation for reaction between carbon dioxide and limewater?

Write the ionic reaction equation for the reaction \[\ce{Ca(OH)2(aq) + CO2(g) <=> CaCO3(s) + H2O(l)}.\] I first wrote the complete ionic equation as such: \[\ce{Ca^2+ + 2 OH^- + CO2 <=> ...
youthdoo's user avatar
  • 133
3 votes
1 answer
804 views

When NaOH ionizes in water, does the OH– react with the water molecules or with the hydronium ions from the dissociation of water?

NaOH in water becomes $\ce{Na+}$ and $\ce{OH-}$ ions. If it's a Bronsted Lowry base then the $\ce{OH-}$ ions will take $\ce{H+}$. But FROM where exactly - from the water molecules or from the ...
CaptainAmerica Whyso's user avatar
3 votes
1 answer
104 views

Why is phosphine more acidic than ethylene?

Shouldn't ethylene should be more acidic? It has a C=C bond, so the density of electron cloud would be higher in the areas of the double bond while the C-H single bond have way less electron density. ...
74H54N3's user avatar
  • 110
4 votes
1 answer
391 views

Predict who is the acid and who is the base in an acid-base reaction using pKa

In my book (Bruice) it is specified how it is possible to compare the pKa of two substances to understand who acts as an acid and who as a base. Here's the example in the book: $\ce{NH3 + H2O}$. $\...
Luckenberg's user avatar
-2 votes
1 answer
260 views

Should nitric acid be classified as a strong acid? Does it completely dissociate in water?

By definition, a strong acid must completely ionize in aqueous solution. However, in order to completely dissociate in water, strong acids must be more acidic than a hydronium ion and hence have a pKa ...
Malek's user avatar
  • 69
-5 votes
1 answer
183 views

Is an aqueous solution of lithium superoxide basic or neutral? [closed]

Is the aqueous solution of lithium superoxide basic or neutral? I know that $\ce{Li}$ is a metal, thus its oxide ($\ce{Li2O}$) produces base in reaction with water.
UHL's user avatar
  • 1
5 votes
1 answer
491 views

Why is water present in "pure" nitric acid and RFNA and WFNA?

Various types of nitric acid have been used in rocket fuels as oxidisers (RFNA is red fuming nitric acid, WFNA is white fuming nitric acid) as they are often hypergolic with a wide variety of fuels. ...
matt_black's user avatar
-3 votes
1 answer
108 views

Does concentrated HNO3 oxidize aluminium to form a protective oxide layer, or is the oxide layer already present so HNO3 is unable to react? [duplicate]

Sources on the internet like this one only say that aluminium does not react with concentrated or dilute $\ce{HNO3}$. I have seen other related questions on this site but none answers my question ...
vishesh jain's user avatar

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