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Questions tagged [acid-base]

This tag should be applied to questions concerning acid and base reactions. An acid is capable of donating a hydron/ proton (Brønsted acid) or capable of forming a covalent bond with an electron pair (Lewis acid). A base on the other hand is a chemical species/ molecular entity having an available pair of electrons capable of forming a covalent bond with a hydron/ proton (Brønsted base) or with the vacant orbital of some other species (Lewis base).

-4 votes
1 answer
26 views

PREPARATION OF SALTS [closed]

A liquid turns white anhydrous copper sulfate blue and has a boiling point of 103°C. Which could be the identity of the liquid? A alcohol B petrol C salt solution D pure water
shaheer hassan's user avatar
-3 votes
0 answers
17 views

Question regarding comparison of acidic and basic nature of oxides

I understand that in general metal oxides are basic and that non metals oxides are acidic and i also understand that certain exceptions do exist. However i do not understand how i should go about ...
koiboi's user avatar
  • 95
-2 votes
1 answer
45 views

Only the Hydrogen ions bonded to oxygen are replaceable in Phosphorous acid. Why?

The basicity of Phosphorous acid is 2 though it has 3 Hydrogen ions. I heard that it is because only the hydrogen ions bonded to Oxygen (Only 2 H ions) are replaceable. Why is it so?
Shwetha's user avatar
  • 11
-1 votes
0 answers
32 views

Algebraic method for modelling sodium acetate in solution

For a solution of sodium acetate ($NaA$), I want to find the concentrations of $H^+$, $OH^-$, $HA$ and $A^-$ via the algebraic method, being the total concentration of $NaA$ $C_A=0.25~\text{M}$, the ...
wolfram's user avatar
  • 337
1 vote
1 answer
41 views

H+ concentration of the mixture of a strong and weak acid

I reviewed the complete solution (hand-written) to the problem at Calculation of the pH of a mixture of a strong acid and weak acid. My question is why it is okay to apply the K1 value for the weak ...
Earl Whitney's user avatar
-1 votes
2 answers
99 views

How can adding a strong base to a weak base be the same as a strong base in solution problem?

In professor's lecture on acid-base titration, professor says (at this point of the video, link should start about the time she says it) "adding a strong base to a weak base should be treated as ...
niobium's user avatar
  • 255
2 votes
0 answers
43 views

Stability of carbenes

For predicting the order of formation of carbenes from the following compounds (CHI3, CHBr3, CHF3), we can take a look at the stability of the halide anion that is formed (I- vs. Br- vs. F-) and the ...
MVV's user avatar
  • 31
2 votes
2 answers
119 views

Why would the theoretical pH not match the measured pH when performing a titration of NH4OH with HCl?

I ran a weak base - strong acid titration experiment using an automatic titrator. I started with an aqueous ammonia stock solution (somewhere in the range of 0.1 - 2.5 wt.%) that was left open to ...
Nicholas Kam's user avatar
2 votes
0 answers
28 views

Irreversible uncharged acid/base indicator

I am conducting a process in an electrochemical cell where at the cathode or anode surface the pH might be acidic or basic. To figure out if either one is correct I would like to find a reaction that ...
Noah's user avatar
  • 389
-4 votes
1 answer
36 views

Alkaline + Sweat + heat = cat piss? [closed]

Back in the 70s my Army unit spent three days in the Arizona desert, temperatures reached over 110°, we only told to only bring one set of camouflage fatigue. After the maneuvers we were bussed to the ...
Alan Austin's user avatar