I need help on this assignment. please answer this correctly.

1. Describe generally what happened to each spot of ink

Each ink spotsome distance andinto different colors.

2. Contrast the effectiveness of the two solvents.

3. what is the identity of the mystery ink in the note? Use evidence to support your claim.

4. What observations would lead you to believe that a colored ink is actually a mixture.?

I would believe a colored ink is a mixture of I see it

5. you are given an unknown type of clothing dye. How could you see the procedure in this lab to see if this dye is a mixture?

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.