1. A student calculated the theoretical yield of BaSO4(s) in a precipitation experiment to be 1.352 grams. When she filtered, dried, and weighed her precipitate, however, her actual yield was only 1.279 grams. Calculate the student's percent yield.

Student's percent yield =  94.6%

Explanation:

Given:

Estimated yield of BaSO₄(s) = 1.352 grams

Actual yield = 1.279 grams

Find:

Student's percent yield = ?

Computation:

Student's percent yield = [Actual yield / Estimated yield of BaSO₄(s)]100

Student's percent yield = ( 1.279 grams / 1.352 grams)100

Student's percent yield = (0.946)100

Student's percent yield =  94.6%

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.