Chemistry
2006-07-23 12:07:15 · 3 answers · asked by cuqui816 1 in Education & Reference ➔ Homework Help
The molecular formula C3H5O2 should have a weight of
73 gm/mole
as C has a weight of about 12, O has a weight of about 16 and H has a weight of about 1. So
(3 X 12) + (5 X 1) + (2 X 16) = 73
2006-07-23 14:14:15 · answer #1 · answered by rscanner 6 · 0⤊ 0⤋
The empirical formula weight of C3H5O2=12*3+5*1+16*2=73
Molecular weight is given as 126 g/mol
Therefore, molecular formula weight is twice the empirical formula weight
So the molecular formula=C6H10O4
2006-07-25 03:51:14 · answer #2 · answered by rumradrek 2 · 0⤊ 0⤋
C3H5O2 and 146g / mol
C = 12 grams/mole 3*12 = 36 for Carbon
H = 1 grams/mole 5* 1 = 5 for Hydrogen
O = 16 grams/mole 2*16 = 32 for Oxygen
Total = 36 + 5 + 32 = 73 grams/mole
146 g/mol / 73 g/mole = 2
Use the factor of two to determine the chemical formula
C(3*2)H(5*2)0(2*2)
=C6H10O4
2006-07-23 22:56:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋