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White raven [17]

3 years ago

11

What is the pH of 0.0001 M NaOH

1 answer:

kow [346]3 years ago

5 0

Well. NaOH is a base. That's the first thing you need to watch for.
So to find the pOH, you take -log(.0001)
that would be 4. So now you have the pOH and <u>you still need to find the pH
</u>To find pH from pOH, you take 14(the maximum pH,sorta)-pOH(in this case 4)
14-4=10 The pH of NaOH is 10

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0.901g KHP is fully titrated with 44.1 mL of an NaOH solution of unknown concentration. What is the concentration of the NaOH so

jekas [21]

My solution was .1M using c=mol/volume but is this correct? It seems to simple.

5 0

2 years ago

A chemist is using a solution of HNO3 that has a pH of 3. 75. What is [H ] for the solution? Round to the nearest hundredth. × 1

Alexeev081 [22]

The estimation of the acidic and the basic character of a solution is called and defined by the pH. The $\rm [H^{+}]$ concentration of the solution will be $\rm 1.77\times 10^{-4}.$

<h3>What is the pH?</h3>

pH is a measurement of the free hydrogen and hydroxyl ions in the solution of the substance.

It can be calculated as:

$\rm pH = - \rm log[H^{+}]$

Given,

pH = 3.75

Substituting values in the equation:

$\begin{aligned}\rm 3.75 &= -\rm log[H^{+}]\\\\\rm [H^{+}] &= 10^{-3.75}\\\\&= 1.7782 \times 10^{-4}\end{aligned}$

Therefore, $\rm 1.77\times 10^{-4}$ is the concentration of the hydrogen ions.

Learn more about pH here:

brainly.com/question/10285267

8 0

2 years ago

5 drops of 0.15 M Ki added to<br>40 drops of Na2S2O3<br>What is the final concentration of ki?

rjkz [21]

Answer:

$\boxed{\text{0.017 mol/L}}$

Explanation:

Na₂S₂O₃ solution does not react with KI (it reacts with I₂), so it is simply diluting the KI, and we can use the dilution formula.

$c_{1}V_{1} = c_{2}V_{2}$

Data:

c₁ = 0.15 mol·L⁻¹; V₁ = 5 drops

V(Na₂S₂O₃) = 40 drops

Calculations:

(a) Calculate the total volume

V₂ = 5 + 40 = 45 drops

(b) Calculate the concentration

0.15 × 5 = c₂ × 45

0.75 = 45c₂

$c_{2} = \dfrac{0.75 }{45} = \boxed{\textbf{0.017 mol/L}}$

3 0

3 years ago

La porción de materia que presenta propiedades definidas y composición constante se define como:

boyakko [2]

Answer:

A compound

Explanation:

That's the definition — a compound is a substance that has definite properties and constant composition.

7 0

3 years ago

You are standing on the rim of a canyon, you drop a rock and in 7.0 seconds hear the sound pof it hitting the bottom, how deep i

sp2606 [1]

This should help you with your question:

Gravitational pull = 9.8 m/s^2

1/2 x 9.8 x 7^2 = 240.1 m

The rock has fallen 240.1 m.

I cannot help you with the rest, but this should give you a headstart.

8 0

3 years ago