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
Helga [31]
3 years ago
8

I do not know how is my answered

Chemistry
1 answer:
Afina-wow [57]3 years ago
4 0
What? I’m confused???????????????????????????
You might be interested in
How many isomers are there in C7H16 ?<br><br>a. 6<br>b. 7<br>c. 8<br>d. 9​
Mariulka [41]
The correct answer is 9 .
7 0
3 years ago
The word science is derived from latin word..........which means............​
stepan [7]
Scientia, meaning knowledge and skill
8 0
3 years ago
What is the smallest particle of an element?
RideAnS [48]
The smallest is an atom
7 0
3 years ago
Read 2 more answers
2022
Lapatulllka [165]

Answer:

OOO

Explanation:

OOOOOO

8 0
2 years ago
consider an exceptionally weak acid, HA, with Ka= 1 x 10-20. you make 0.1M solution of the salt NA. what is the pH.
iogann1982 [59]

Answer:

pH=10.5

Explanation:

Hello,

In this case, the dissociation of the given weak acid is:

HA\rightleftharpoons H^++A^-

Therefore, the law of mass action for it turns out:

Ka=\frac{[H^+][A^-]}{[HA]}

That in terms of the change x due to the reaction extent is:

1x10^{-23}=\frac{x*x}{0.1-x}

Thus, by solving with the quadratic equation or solver, we obtain:

x=31.6x10^{-12}M

Which clearly matches with the hydrogen concentration in the solution, therefore, the pH is:

pH=-log(-31.6x10^{-12})\\pH=10.5

Regards.

5 0
3 years ago
Other questions:
  • How is the salt formed in a neutralization reaction written in a chemical reaction?
    5·1 answer
  • When atoms lose more than one electron, the ionization energy to remove the second electron is always more than the ionization e
    7·2 answers
  • What marine province contains deep ocean trenches that form along convergent plate boundaries as a result of subduction?
    5·1 answer
  • A scientist wrote a report that communicates the steps he performed in an investigation, the data he gathered, and his conclusio
    5·1 answer
  • At a pressure of 505 kPa, the volume of a gas is 12.00 mL. Assuming the temperature remains constant,
    8·1 answer
  • 2. Which test for iron(II) ions is conclusive ​
    14·2 answers
  • NO BOTS!<br> Determine the total net force and the direction of movement for the situation.
    8·1 answer
  • Draw the lewis dot structure of C4H8N2O3
    9·1 answer
  • Hello people ~
    8·2 answers
  • Which of the following is an example of a chemical change?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!