the empirical formula of a compound is CH the molecular weight of the compound is 78 find the molecular formula
Answers
Answered by
15
First we find the empirical formula weight of CH= 13 because weight of C=12 and weight of H=1. Therefore CH= 12+1=13.
Next we have to divide the molecular weight and empirical formula weight.
=78/13=6.
6 will be the number of moles.
Therefore molecular formula = 6(CH)
Which is C6H6.
Next we have to divide the molecular weight and empirical formula weight.
=78/13=6.
6 will be the number of moles.
Therefore molecular formula = 6(CH)
Which is C6H6.
debdas347:
why do we have to find the molar mass
Because that is the formula to find the molecular formula.
I didn't copy you
Haha not you. I meant the other person
can u state it
Molecular formula= (molecular weight)/(empirical formula weight
Answered by
1
the molecular mass of CH is 13 u
Next we have to divide it by 78 to find molecular formula
78/13 = 6
so the molecular formula of CH compound which weight 78 g is 7 CH
Next we have to divide it by 78 to find molecular formula
78/13 = 6
so the molecular formula of CH compound which weight 78 g is 7 CH
sorry it's 6 CH
plz mark as brainlieast
why do we divide
Please don't copy me.
we divide it to find the no. of molecules of CH present in compound
mark as brainlieast
Similar questions