Answer:
Emperical formula of the acid is CH2O
Molecular formula is C2H4O2
Explanation:
C. H. O
% by mass. 40. 6.71 53.29
MW. 12. 1. 16
Mole 40/12. 6.71/1. 53.29/16
3.33. 6.71. 3.33
3.33/3.33 6.71/3.33 3.33/3.33
1. 2. 1
Emperical Formula (EF): CH2O
Molecular Formula (MF)
Molecular Weight (MW) of acid = mole/mass = 0.00278/0.167 = 60g/mol
MF = (EF)n = 60
(CH2O)n = 60
(12+2+16)n = 60
30n = 60
n = 60/30 = 2
Molecular formula = (EF)n = (CH2O)2 = C2H4O2
Answer:
magnesium and chlorine
Explanation:
An ionic bond is usually formed between a metal and a nonmetal. An ionic bond involves the transfer of one or more electrons from a highly electro positive metal to a nonmeta.
Usually, the electro negativity difference between the two species involved in an ionic bond is usually high.
For instance, the electro negativity of magnesium is 1.31 while that of chlorine is 3.16. This implies that they have a difference in electro negativity of about 1.85 between them which is large enough to be considered as leading to a pure ionic bond. An electro negativity difference above 1.7 is generally regarded as leading to the formation of an ionic bond.
