Answer:
It is a base and should turn a paper green
Explanation:
1.0x10^3*1*47/6.022x10^23 = 7.8x10^-20
Avogadro's Magic Number: 6.022x10^23
Use my answer as a reference! I have not taken chemistry in quite a bit.
Answer:
c ) 8
Explanation:
Given data:
Number of moles of water produced = ?
Moles of hydrogen react = 8 mol
Solution:
Chemical equation:
2H₂ + O₂ → 2H₂O
Now we will compare the moles of hydrogen and water.
H₂ : H₂O
2 : 2
8 : 8
Thus, 8 moles of water will produced.
Answer:
![[OH^-]=1.7x10^{-6}M](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D1.7x10%5E%7B-6%7DM)
Explanation:
Hello!
In this case, since the pOH of a solution can be computed when knowing the pH as shown below:
And therefore, the concentration of hydroxide ions based on the definition of pH:
![[OH^-]=10^{-pOH}](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D10%5E%7B-pOH%7D)
In such a way, we obtain:
![[OH^-]=10^{-5.78}=1.7x10^{-6}M](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D10%5E%7B-5.78%7D%3D1.7x10%5E%7B-6%7DM)
Best regards
