Grade 12Physical Chemistry
The sum of the mole fraction of A,B,C in an aqueous solution containing.0.2 moles of each A,B and C is
The sum of the mole fraction of A,B,C in an aqueous solution containing.0.2 moles of each A,B and C is
3 Answers
Naureen Nida
given, nA = nB = nC = 0.2
mole fraction of A = nA÷nA+nB+nC =0.2÷0.2+0.2+0.2
= 0.2÷0.6=1/3
mole fraction of A =B=C= 1/3
Agrata Singh
Sum of mole fraction of all constituent of a mixture is always 1. No matter how many constituents are given and no matter their individual no of moles, if sum of all mole fractions is asked it is always one.
Aastha Singh
DEAR STUDENT,
MOLE FRACTION OF N NO. OF COMPOUNDS TOGETHER ALWAYS ADD UP TO 1
HERE moles of a,b and c = NA=NB=NC=0.2
MOLEFRACTIONS OF ALL THE THREE= 0.2/0.2+0.2+0.2= 1/3
SUM OF MOLE FRACTIONS OF ALL= 3(1/3)= 1
MOLE FRACTION OF N NO. OF COMPOUNDS TOGETHER ALWAYS ADD UP TO 1
HERE moles of a,b and c = NA=NB=NC=0.2
MOLEFRACTIONS OF ALL THE THREE= 0.2/0.2+0.2+0.2= 1/3
SUM OF MOLE FRACTIONS OF ALL= 3(1/3)= 1
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