A compound has the percent composition 47.40% Pd, 28.50% O, 21.40% C, and 2.69% H. Based on this information, which molecular formulas could represent the compound? PdO2C2H3 Pd(O2CCH3)2 Pd(O2C2H3)3 PdO4C2H9 Pd2C8H12O8
Answers
Answered by
0
EXPERT-VERIFIED
ANSWERED
by Annainn
+7
acobdarfq and 7 more users found this answer helpful
The composition of the various elements are:
Pd = 47.40% = 47.40 g
O = 28.50 % = 28.5 g
C = 21.40 % = 21.40 g
H = 2.69 % = 2.69 g
Atomic mass of Pd = 106 g/mol
Atomic mass of O = 16 g/mol
Atomic mass of C = 12 g/mol
Atomic mass of H = 1 g/mol
# moles of Pd = 47.40 g/106 gmol-1 = 0.4472 moles
# moles of O = 28.5/16 = 1.781
# moles of C = 21.40/12 = 1.783
# moles of H = 2.69/1 = 2.69
Divide by the smallest # moles
Pd = 0.4472/0.4472 = 1
O = 1.781/0.4472 = 3.98 = 4
C = 1.783/0.4472 = 3.98 = 4
H = 2.69/0.4472 = 6
Empirical formula = Pd(O2C2H3)2
therefore, the probable molecular formula is Pd(O2C2H3)2
Similar questions