[plu]

A heads-up: This is not a homework problem of mine to which I want the answer.  Just some chemistry fun 

A radioactive gas A is known to react with copper(II) oxide at 500^oC.  One of the products of this reaction, B, at the same temperature, reacts with compound M (which contains 75% by mass of Al) to yield a gas C with molar mass equal to 24, and a compound containing 53% by mass Al.  Radioactive decay of one of the atoms of compound C leads to its decomposition giving some charged particles D with molar mass equal to 21, and helium atoms ³He.  Contact of gas C with water vapors gives the molecules of an alcohol E with molar mass of 38, and hydronium ions.

What compounds are represented by letters A, B, C, D, E, and M.

[Borek]

Nice one

Pó?okres 12.32 roku

[technologist]

Your problems is erratic. Here it is -

to yield a gas C with molar mass equal to 24

And then

Contact of gas C with water vapors gives the molecules of an alcohol E with molar mass of 38, and hydronium ions

These 2 statements contradict molar mass of C which is mentioned as 24 in first Quote & 39 based on II Quote.

Edited to not spoil fun for others

Since, Challenge (possible) is deciphered, remaining things are to be solved by you & its a matter of time only, which I cant devote right now.

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[Borek]

Your problems is erratic. Here it is -

to yield a gas C with molar mass equal to 24

And then

Contact of gas C with water vapors gives the molecules of an alcohol E with molar mass of 38, and hydronium ions

These 2 statements contradict molar mass of C which is mentioned as 24 in first Quote & 39 based on II Quote.

No, you got confused by the second statement.

[plu]

Pó?okres 12.32 roku

What does this mean, Borek?

[Borek]

It is a proof I know the answer, but I didn't want to spoil fun for others

[wildstar]

A: T₂
B: T₂O
C: CT₄
D: CT₃⁺
E: CT₃OH
M: Al₄C₃

[technologist]

I am completely knocked to know that we were talking about hypothetical compounds. I also learned from the reply of wildstar that T=3 (I dont know whether this answer is correct or not, Borek can tell us). Anyone know a gas T₂ type with MW=6. I know only Li=3.

Further, as I wrote in my doubt, C =24 with water gives E = 38 + Hydronium Ions = 19 which is not balancing.

Real chemistry problems or FUN is different than based on hypo compounds & nos.

[AWK]

Further, as I wrote in my doubt, C =24 with water gives E = 38 + Hydronium Ions = 19 which is not balancing.

CT4 + H2O = CT3OH + HT
It is balanced, but I agree the reaction is slightly strained

[Borek]

I am completely knocked to know that we were talking about hypothetical compounds.

None of these compounds is hypothetical! T stands for Tritium, isotope of hydrogen. You were told that substance is radioactive.

[technologist]

CT4 + H2O = CT3OH + HT

I thought Hydronium Ion is H₃O⁺.

So

CT4 + H2O = CT3OH + H3O+, Which is not obviously fit.

Also, if I replace T (Tritium as suggested by Borek) with H in your equation (Just to show the possibility of reaction) it should give me

CH4 + H2O = CH3OH + 2H₂, which doesnt happen.

[Borek]

Contact of gas C with water vapors gives the molecules of an alcohol E with molar mass of 38, and hydronium ions.

Everything is OK here. When tritium decays:

CT₄ -> CT₃⁺ + ³He + e^-

Then:

CT₃⁺ + 2H₂O -> CT₃OH + H₃O⁺

See how molar masses agree with the question - CT₄ is 24, CT₃OH is 38.

It was never stated that this reaction needs one water particle, nor that it is CT₄ that reacts with water - that was only your interpretation. You have made several hidden assumptions, that stopped you from seeing the answer



Edit: corrected stupid mistake signalled by AWK.

[AWK]

- CT3+ is 24,

CT3+ is 21