Answer:
Vitamins are classified as either fat soluble (vitamins A, D, E and K) or water soluble (vitamins B and C). This difference between the two groups is very important. It determines how each vitamin acts within the body.
Answer:
The answer to your question is: mass = 0.760 g
Explanation:
Data
V = 0.285 L
T = 57°C = 330°K
P = 1 atm
R = 0.082 atm L/mol°K
mass = ?
Formula
PV = nRT
n = PV / RT
Substitution
n = (1)(0.285) / (0.082)(330)
n = 0.285 / 27.06
n = 0.011
mW Pentane = (12 x 5) + (12 x 1) = 72 g
72 g of pentane ----------------- 1 mol
x ----------------- 0.0105 mol
x = (0,0105 x 72) / 1
x = 0.756 g ≈ 0.760 g
If the hydrogen ion concentration of a solution is 10–10M, is the solution is definitely alkaline. The thing I used to determine that fact is a basic point - pH above 7 is always alkaline, and as a proof, we can see from the task that the concentration of hydroxyl OH- is pretty higher than hydrogen H+, which is a direct characteristic of the alkain solution.Here is a tip for you, I bet it will be useful : >7 = basic <7 = acidic 7 = neutral
What? It would be nice if you show pic
What do you mean by this?