Answer:
Improved water supply and sanitation and improved water resources management boost countries' economic growth and contributes greatly to poverty eradication. ... National economies are more resilient to rainfall variability, and economic growth is boosted when water storage capacity is improved
Explanation:
Answer:
The pH of the solution is 12.31 .
Explanation:
Initial molarity of barium hydroxide =
Initial volume of barium hydroxide =
Final molarity of barium hydroxide =
Final volume of barium hydroxide =
1 mol of barium gives 2 mol of hydroxide ions.
Then 0.0104 M of barium hydroxide will give:
of hydroxide ions
![[OH^-]=0.0208 M](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D0.0208%20M)
![pH=14-pOH=14-(-\log[OH^-])](https://tex.z-dn.net/?f=pH%3D14-pOH%3D14-%28-%5Clog%5BOH%5E-%5D%29)
![pH=14-(-\log[0.0208 M])=12.31](https://tex.z-dn.net/?f=pH%3D14-%28-%5Clog%5B0.0208%20M%5D%29%3D12.31)
The pH of the solution is 12.31 .
These are isotopes of that element. The nucleus is different because the number of neutrons differ and aren't the same. The number of protons are the same though.<span />
Hi! I don’t see a picture, did you forget to include one?
The answer is: 11 g .
How many molecules are in 0.35 moles?
Explanation: So, I have 0.35 moles of ethanol: thus I have 0.35×NA ethanol molecules . Now NA=6.022×1023 .
Thus, 0.25 mole of oxygen contains 1.505×1023 molecules.
One mole of oxygen atoms contains 6.02214179×1023 oxygen atoms
