A544 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. after this purification was completed the product crystals were dried and analyzed. the purification procedure produced 1.80 × 102 mg of fluorene and 196 mg of benzoic acid. calculate the percent composition of this mixture.

The percent composition of fluorene is 33.08 % and benzoic acid is 36.03 %.

Explanation:

We are given:

Mass of mixture = 544 mg

Mass of fluorene after purification =

Mass of benzoic acid after purification = 196 mg

To calculate the percentage composition of a substance in a mixture, we use the equation:

For fluorene:

Hence, the percent composition of fluorene is 33.08 %

For benzoic acid:

Hence, the percent composition of benzoic acid is 36.03 %

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.