When,
[OH⁻] = 1.4 × 10⁻³
Then,
pOH = -log (1.4 × 10⁻³)
pOH = 2.85
Also,
pH + pOH = 14
So,
pH = 14 - 2.85
pH = 11.15
As pH is greater than 7, so the solution is Basic in Nature.
Calculating for concentration of [H⁺],
As,
pH = -log [H⁺]
Or,
11.15 = -log [H⁺]
Taking Antilog on both sides,
[H⁺] = 7.07 × 10⁻¹² M
Result:
A solution with a hydroxide ion concentration of 4.15 × 10⁻³<span> M is Basic and has a hydrogen ion concentration of </span><u>7.07 × 10⁻¹² M.</u>
Answer:
Following are the solution to the given question:
Explanation:
Please find the complete question and its solution file in the attachment.
I think the most appropriate answer is: the solvent being used in the experiment
<span>To correct for any light absorption not originating from the solute you will need to calibrate the tools with a solution that most similar to the sample.
Blank covete or standard solution can be used, but it was not ideal. By using the solvent as calibration, you can remove the reading from the solvent so your result only comes from the sample.
</span>
Friction is helpful:
- We use it to brake for cars
- We use it to fly planes
-We wouldn't be able to turn a door knob without friction ( Our hand would just slide off it)
Friction harmful:
-Our cars would get much better gas mileage without tire and air friction
- There would be no skinned knees if friction didn't exist (Like when your skating or football)
- We could do some pretty cool dance moves without friction
- Our shoes would last longer without friction
Answer:
2:2:1
Explanation:
The reaction expression is given as:
HXO → HX + O₂
We are to balanced this unbalanced reaction expression.
To solve this put, coefficient a, b and c before every specie:
aHXO → bHX + cO₂
Now use a mathematical approach to solve this;
Conserving H: a = b
X: a = b
O: a = 2c
let a = 1, b = 1 and c =
Multiply through by 2;
a = 2, b = 2 and c = 1
So;
2HXO → 2HX + O₂
Balanced ratio; 2:2:1