Then answer would be D. Answer D is correct because you would need to use a better solvent to see the ink separate on the chromatography paper. Hope that helps. :)
Answer:
?? no entiendo la pregunta?...pero gracias por los puntos free UvU
Explanation:
Answer:
0.12 mL of the epinephrine solution.
Explanation:
We have:
A bottle of epinephrine labeled 1 mg in 1 mL of solution,
We need to prepare:
An injection of 0.12 mg of epinephrine
Hence:

Therefore, to prepare an injection of 0.12 mg of epinephrine labeled 1 mg in 1 mL we need to inject 0.12 mL of the epinephrine solution.
I hope it helps you!
Carbon is produced by producers, consumed by consumers, released by consumers, and returned to the air and soil by decomposers.