1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
devlian [24]
3 years ago
7

.​Find the pH if the [H3O+1] is 6.2  10-10 M

Chemistry
1 answer:
pishuonlain [190]3 years ago
3 0

Answer:

The pH is 9,21.

Explanation:

The pH indicates the acidity or basicity of a substance. PH values between 0 and less than 7 indicate acidic solutions, 7 neutral and higher than 7 to 14 basic. It is calculated as

pH = -log (H 30+)

pH= -log (6,2 x 10^-10)

<em>pH=9,21</em>

You might be interested in
How does air pressure affect the boiling point of a liquid?
Agata [3.3K]

Answer:

D. Air pressure lowers the temperature of the liquid molecules.

3 0
3 years ago
Read 2 more answers
R indicates round seeds that are dominant over the wrinkled variety, represented by r. For each numbered individual in the pedig
Dmitry [639]

Answer:

it is incomplete, is this te entire tree

Explanation:

8 0
3 years ago
Calculate the percent ionization of nitrous acid in a solution that is 0.249 M in nitrous acid. The acid dissociation constant o
sattari [20]

Answer:

4.26 %

Explanation:

There is some info missing. I think this is the original question.

<em>Calculate the percent ionization of nitrous acid in a solution that is 0.249 M in nitrous acid. The acid dissociation constant of nitrous acid is  4.50  ×  10 ⁻⁴.</em>

<em />

Step 1: Given data

Initial concentration of the acid (Ca): 0.249 M

Acid dissociation constant (Ka): 4.50  ×  10 ⁻⁴

Step 2: Write the ionization reaction for nitrous acid

HNO₂(aq) ⇒ H⁺(aq) + NO₂⁻(aq)

Step 3: Calculate the concentration of nitrite in the equilibrium ([A⁻])

We will use the following expression.

[A^{-} ] = \sqrt{Ca \times Ka } = \sqrt{0.249 \times 4.50 \times 10^{-4}  } = 0.0106 M

Step 4: Calculate the percent ionization of nitrous acid

We will use the following expression.

\alpha = \frac{[A^{-} ]}{[HA]} \times 100\% = \frac{0.0106M}{0.249} \times 100\% = 4.26\%

4 0
3 years ago
Identify one natural process that may cause sudden climate changes.
Vesnalui [34]

Answer:

Global Warming , Volcanic Eruption

3 0
3 years ago
A sample of the chiral molecule limonene is 62% enantiopure. what percentage of each enantiomer is present? what is the percent
ikadub [295]

The mixture contains 62 % one isomer and 38 % the enantiomer.

Let’s say that the mixture contains 62 % of the (<em>R</em>)-isomer.

Then % (<em>S</em>) = 100 % -62 % = 38 %

ee = %  (<em>R</em>) - % (<em>S</em>) = 62 % -38 % = 24 %


6 0
3 years ago
Read 2 more answers
Other questions:
  • Write a complete electron configuration for borin
    9·1 answer
  • What is the electron configuration of chlorine (cl)?
    6·1 answer
  • A student is told to use 20.0 grams of sodium chloride to make an aqueous solution that has a concentration of 10.0 grams of sod
    7·1 answer
  • Naoh is a strong electrolyte, and ch3oh is a nonelectrolyte. how is the solution of naoh different from that of ch3oh?
    12·1 answer
  • At the normal melting point of NaCl, 801 degrees C, its enthalpy of fusion is 28.8 kJ / mol. The density of the solid is 2.165 g
    10·1 answer
  • If the cooling power remains constant, what will be the temperature of the system TB after it has been in the freezer for exactl
    9·1 answer
  • PLZ HELP ME IM FAILING!<br><br> Everything you need to know about the question is on the photo
    11·1 answer
  • Question 1: A measure of the amount of matter in an object
    5·2 answers
  • Define state of matter ​
    15·1 answer
  • During complete combustion, natural gas combines with oxygen to produce _____.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!