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FrozenT [24]
3 years ago
13

Please help I will reward brainly this is science

Chemistry
1 answer:
Licemer1 [7]3 years ago
8 0
I think it is space or displacement
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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

#SPJ4

5 0
1 year ago
Consider the reaction to produce methanolCO(g) + 2H2 (g) <-----> CH3OHAn equilibrium mixture in a 2.00-L vessel is found t
MariettaO [177]

Answer : The value of K_c of the reaction is 10.5 and the reaction is product favored.

Explanation : Given,

Moles of CH_3OH at equilibrium = 0.0406 mole

Moles of CO at equilibrium = 0.170 mole

Moles of H_2 at equilibrium = 0.302 mole

Volume of solution = 2.00 L

First we have to calculate the concentration of CH_3OH,CO\text{ and }H_2 at equilibrium.

\text{Concentration of }CH_3OH=\frac{\text{Moles of }CH_3OH}{\text{Volume of solution}}=\frac{0.0406mole}{2.00L}=0.0203M

\text{Concentration of }CO=\frac{\text{Moles of }CO}{\text{Volume of solution}}=\frac{0.170mole}{2.00L}=0.085M

\text{Concentration of }H_2=\frac{\text{Moles of }H_2}{\text{Volume of solution}}=\frac{0.302mole}{2.00L}=0.151M

Now we have to calculate the value of equilibrium constant.

The balanced equilibrium reaction is,

CO(g)+2H_2(g)\rightleftharpoons CH_3OH(g)

The expression of equilibrium constant K_c for the reaction will be:

K_c=\frac{[CH_3OH]}{[CO][H_2]^2}

Now put all the values in this expression, we get :

K_c=\frac{(0.0203)}{(0.085)\times (0.151)^2}

K_c=10.5

Therefore, the value of K_c of the reaction is, 10.5

There are 3 conditions:

When K_{c}>1; the reaction is product favored.

When K_{c}; the reaction is reactant favored.

When K_{c}=1; the reaction is in equilibrium.

As the value of K_{c}>1. So, the reaction is product favored.

7 0
3 years ago
What is 2,100 in Scientific notation
Verizon [17]
It is 2.1 x 10^3 because your base number needs to be in between 1 and 10, and the number you are converting is non-decimal, so the exponent is positive. It is 10^3 because you are moving the decimal 3 places to the right
6 0
3 years ago
Read 2 more answers
If you find that a substance turns litmus paper to blue and contains hydrogen ions it is most likely what
Darya [45]
An acid, possibly a strong one
4 0
3 years ago
A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 N. The carriage has ____
QveST [7]

Answer:

B

Explanation:

The carriage has potential energy

5 0
3 years ago
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