What technique will you use to purify your pharmaceutical acid?

Group of answer choices

melting point

recrystallization

reflux

boiling point

Flag question: Question 2

Question 21 pts

What solvent will you use to do recrystallization?

Group of answer choices

water

ethanol

acetone

dichloromethane

Flag question: Question 3

Question 31 pts

What melting point range will you be looking for to confirm that your sample is pure?

Group of answer choices

3-5 degrees C

2-4 degrees C

5-10 degrees C

1-2 degrees C

Flag question: Question 4

Question 41 pts

How does temperature generally affect solubility, specifically the solubility constant S.

Group of answer choices

Solubility (S) decreases at higher temperature

Solubility (S) increases at higher temperature

Solubility (S) has not effect on temperature

Flag question: Question 5

Question 51 pts

Why do you need to heat the beaker that contains the solution of the acid you are recrystallizing?

Group of answer choices

to melt the acid

to do a chemical reaction

to increase the solubility of acid in water

Flag question: Question 6

Question 61 pts

According to the procedure, how much solvent will you use to dissolve the acid when performing your recrystallization?

Group of answer choices

as little as possible

as much as possible

exactly 3 drops

Flag question: Question 7

Question 71 pts

What are the color of the gloves the person was wearing in the YouTube recrystallization video?

Group of answer choices

black

red

pink

blue

Flag question: Question 8

Question 81 pts

What technique is used for identification of the unknown acid in this experiment?

Group of answer choices

infrared spectroscopy

mixed melting point

mixed boiling point

recrystallization

Flag question: Question 9

Question 91 pts

How will you cool the solution below room temperature to maximize the quantity of crystals of pure acid that will form?

Group of answer choices

Pour the solution on the ice bath

Place the solution on an ice bath

Blow air to the solution

Flag question: Question 10

Question 101 pts

The names of the two acids that could potentially be your unknown acid are:

Group of answer choices

benzoic acid and salicylic acid

acetic acid and benzoic acid

salicylic acid and acetic acid

acetylsalicylic acid and salicylic acid

please answer all of the questions especially from 7 to 10