Answer:
mass gives the mass of atoms while molecular weight gives the mass of molecules
The answer would Be Echlymedia
There are 12 inches in a foot.
16.7 in ÷ 12 in = 1.39 ft
Or if you prefer to the nearest tenth:
1.4 ft.
Good luck! :)
Answer:
![[H_3O^+]=2.40x10^{-13}M](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%3D2.40x10%5E%7B-13%7DM)
![[OH^-]=0.0417M](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D0.0417M)

Explanation:
Hello,
In this case, we are able to compute the concentration of hydroxyl and hydronium by using both he pH and the pOH as shown below:
![[OH^-]=10^{-pOH}](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D10%5E%7B-pOH%7D)
![[H_3O^+]=10^{-pH}](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%3D10%5E%7B-pH%7D)
Moreover, we are able to compute the pOH by:

So we compute the concentrations:
![[OH^-]=10^{-1.38}=0.0417M](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D10%5E%7B-1.38%7D%3D0.0417M)
![[H_3O^+]=10^{-12.62}=2.40x10^{-13}M](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%3D10%5E%7B-12.62%7D%3D2.40x10%5E%7B-13%7DM)
Best regards.