The molality of a solution is expressed as the amount of the solute in moles per mass of the solvent in kilograms. In this case, the molality is equal to 400 g/62.07 g/mol/ 4 kg water. The molality is equal to 1.61 molal. The freezing point depression is determined through Tf- Kb*molality. Substituting, 0 deg - 1.86 * 1.61 m is equal to -2.99 degrees celsius.
Answer:
diffusion, higher , and Lower.
Explanation:
Within systemic capillaries, substances such as oxygen, hormones, and nutrients move by diffusion from their relatively higher concentration in the blood into the interstitial fluid and then into the tissue cells, where the concentration of these materials is lower.
We now that diffusion is process of movement of solute molecules from a region of higher concentration to region of lower concentration. That is against the concentration gradient.
The Iron (III) ion is
![Fe^{3+}](https://tex.z-dn.net/?f=Fe%5E%7B3%2B%7D%20)
The sulfate ion is
![SO _{4}^{2-}](https://tex.z-dn.net/?f=SO%20_%7B4%7D%5E%7B2-%7D%20%20)
Thus when forming the compound iron (iii) sulfate you would need three sulfate ions bonded to two iron ions in order to fill the valency requirement
∴ the formula would be Fe₂(SO₄)₃
Whenever you are adding a number to a radical you must bracket it.
Answer:
All of the following statements are true regarding wood versus metal except:
c) Under sustained loads wood stops to deform
Explanation:
Wood is known to deform under stress. It undergoes warping, thereby, losing its original straight shape when its moisture unevenly dries up. Even concrete deforms under long-time loads. Similarly, wood, under sustained loads, experiences faster deformation than it ordinarily warps. To prevent further wood deformation, it must be treated, and its moisture dried up evenly.