Magic marker inks are often mixtures of several compounds. paper chromatography is a common method of separating various components of a mixture. after separation, you can observe the different colors that make up a particular color of magic marker ink. you can also calculate a ratio rf, which compares how far each compound traveled to how far each solvent (substance that dissolves another substance) traveled during the experiment. rf = ds/df ds = distance traveled by the compound df = distance traveled by the solvent materials: post-lab questions:
1. what evidence is there that marker ink is a mixture?
2. each compound in the marker ink is represented by a color. did one compound travel farther than the others? explain why you think that this is the case.
3. did the compounds travel farther in the water or the isopropyl alcohol (rubbing alcohol)? explain why you think that this is the case.
4. how could you improve upon the accuracy of your rf measurements?
Answers: 1
Other questions on the subject: Chemistry
Chemistry, 21.06.2019 13:30, kinggonzales5082
During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms.
Answers: 1
Chemistry, 22.06.2019 08:00, PrincessKeliah5538
Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
Answers: 1
Chemistry, 22.06.2019 10:00, ellaemtagedeane
Nonpoint source pollution is difficult to control because it
Answers: 2
Do you know the correct answer?
Magic marker inks are often mixtures of several compounds. paper chromatography is a common method o...
Questions in other subjects:
Chemistry, 28.09.2019 00:40
Biology, 28.09.2019 00:40
Biology, 28.09.2019 00:40
Mathematics, 28.09.2019 00:40
