At the beginning of the experiment, the aspirin pill contains 325 mg of acetylsalicylic acid and weighs 400 mg. at the end of experiment, you obtain 110 mg of pure acetylsalicylic acid. what is the % recovery?

That would be (110/ 325)  * 100

= 33.85 %

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

a electronegativity decreases beacuse the size of nucleus is bigger.