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2 answers:
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Answer:
A)
Explanation:
m = Mass of water = 38.9
M = Molar mass of water = 18 g/mol
= Avogadro's number =
The reaction of electrolysis would be
Number of moles of
From the reaction it can be seen that 2 moles of gives 1 mole of
So, number of moles of produced is
Number of molecules
So, of oxygen is produced.
Nitrogen combine with hydrogen to produce ammonia at a
ratio:
Assuming that the reaction has indeed proceeded to completion- with all nitrogen used up as the question has indicated. of hydrogen gas would have been consumed while
of ammonia would have been produced. The final mixture would therefore contain
of
and
of
Apply the ideal gas law to find the total pressure inside the container and the respective partial pressure of hydrogen and ammonia:
A free-radical substitution reaction is likely to be responsible for the observations. The reaction mechanism of a reaction like this can be grouped into three phases:
- Initiation; the "light" on the mixture deliver sufficient amount of energy such that the halogen molecules undergo homologous fission. It typically takes ultraviolet radiation to initiate fissions of the bonds.
- Propagation; free radicals react with molecules to produce new free radicals and molecules.
- Termination; two free radicals combine and form covalent bonds to produce stable molecules. Note that it is possible for two carbon-containing free-radicals to combine, leading to the production of trace amounts of long carbon chains in the product.
Initiation
where the big black dot indicates unpaired electrons attached to the atom.
Propagation
Termination