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Eva8 [605]
3 years ago
9

Peut-on être exact sans être précis?

Chemistry
1 answer:
Evgesh-ka [11]3 years ago
8 0

Answer:

I think you can.

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What is the hydroxide ion concentration of a solution with a ph of 8. 25?
miss Akunina [59]

The concentration of hydroxide ion of a solution with a pH of 8. 25 is 1.77×10^{6} M

Calculation,

The pH of a solution tells us about concentration of the H^{+ ion ( proton ) in solution. However, if we know the value of pH , we can calculate pOH with the help of pH and from pOH we can find concentration of hydroxide ions in the solution.

pH + pOH = 14

8. 25 + pOH = 14

pOH = 14 - 8. 25 = 5.75

Since, pH = -㏒[ H^{+ ]

Similarly, pOH = -㏒[OH^{- ]

If pOH = 5.75 , that means that -㏒[OH^{- ]  = 5.75 ,which means that,

[OH^{- ]  = 10^{-5.75} = 1.77×10^{6}.

So, we know that the concentration of the OH^{- ions in the solution with pH of 8.25 is 1.77×10^{6} Molar

to learn more about hydroxide ion

brainly.com/question/25883474

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5 0
2 years ago
What do the noble gases have in common with the halogens? Both noble gases and halogens are
Sauron [17]
The halogens and noble gases are alike because they are all non-metallic elements, with the exception of astatine, a radioactive
5 0
2 years ago
Basically everything is in the picture, and i dont really understand please help.
zubka84 [21]
This is what I found

5 0
3 years ago
(Hurry ASAP!!!) There are 1.5 moles of methane (CH4) in a tank. It has a pressure of 4.4 atm at 173°C. Find the volume occupied
slamgirl [31]

Answer:

hope this help !

Explanation:

Use the given functions to set up and simplify 173 ° C .

1.5 =

CH4 = CH4

4.4 = CH4

173 ° C = CH4

8 0
3 years ago
What coefficient values will balance the reaction shown? CS2 + Cl2? CCl4 + S2Cl2 A. 1,1,1,1 B. 1,3,1,1 C. 2,1,1,1 D. 1,2,1,2
Talja [164]
The answer is B. 1,3,1,1.

Brady
5 0
3 years ago
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