On strong heating, one gram of the ...
Question

On strong heating, one gram of the silver salt of an organic silver. If the mass percentage of carbon in it 8 times one-half the mass percentage of oxygen, determine the molecular formula of the acid. (a) ( mathrm{C_{4}} H_{6}O_{4}) ({} )(b) ( mathrm{C}_{4} mathrm{H}_{6} mathrm{O}_{6} )(c) (C_{2}H_{6}O_{2})(d) ( mathrm{C}_{5} mathrm{H}_{10} mathrm{O}_{5} )

JEE/Engineering Exams
Chemistry
Solution
130
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[
begin{array}{l}
mathrm{Ag}_{2} mathrm{c}_{x} mathrm{HyO}_{2} rightarrow 2 mathrm{Ag}
text { male of } mathrm{Ag}=frac{0.6}{108}=0.00555
end{array}
]
males of compound = ( 0.0055 / 2 )
[
=0.00277
]
Wt of c_{x} Hy0z. (mean acia)
[
=1-0.6=0.4 g
]
male wt of neid ( = )
[
text { D } frac{0.4}{M-2}=0.00277
]
as two hydrogens with remarks often rkn with ag
[
M-2=144.40
]
[
begin{array}{l}
m approx 146 text { . }
mathrm{C}_{4} mathrm{H}_{6} mathrm{O}_{6}=48+6+96=150approx 146
end{array}
]
Because in question wt of Ag is
is not exact