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
maw [93]
3 years ago
8

What is the approximate ratio of [NO2-] to [HNO2] in order to buffer a solution at pH=4.0?

Chemistry
1 answer:
Strike441 [17]3 years ago
6 0
For the equilibrium that exists in an aqueous solution<span> of nitrous acid (</span>HNO2, a weak acid) ... [H+][NO2. –]. [HNO2<span>]. PAGE: 14.1. 2. Which of the following is a conjugate ... Using the following Ka values, indicate the correct </span>order<span> of base strength. </span>HNO2<span>. Ka = </span>4.0<span> × 10–4 .... Calculate the [H+] in a </span>solution<span>that has a </span>pH<span> of 11.70.
i hope thid works

</span>
You might be interested in
QUICK PLEASE!!!
Assoli18 [71]
Answer. Answer: By adding more carbon dioxide to the atmosphere, the atmosphere becomes more "closed" to energy passing through it, absorbing more. Therefore, thermal energy that once would have been allowed to escape into space is instead absorbed by carbon dioxide and used to heat the Earth. So it’s B
4 0
3 years ago
Read 2 more answers
Which of the following is an example of radiation?
Lapatulllka [165]
I believe the best answer to that question wud be D. I cud b wrong 
5 0
3 years ago
Which is the least dense?
AVprozaik [17]
1000 g of feathers is the least dense
6 0
3 years ago
When you dissolve solid sugar into water, this new solution will taste sweet. the sugar went through a chemical change?
dybincka [34]
Basically the sugar breaks down until it’s eventually evaporated and spreads to different parts of the water solution and while it’s spreading the chemicals and the flavors in the sugar are going into the molecules and atoms in the water and mixing to make the water solution taste sweet just like sugar. So i would say it would be a physical change not a chemical change.
7 0
3 years ago
After the recycled plastic is released from the machine into the brick mold, explain what will happen to the kinetic energy in t
Rina8888 [55]

Answer: Depending on the data and the patterns, sometimes we can see that pattern in a simple tabular presentation of the data. Other times, it helps to visualize the data in a chart, like a time series, line graph, or scatter plot.

Explanation:

1960 5.91

1970 5.59

1980 4.83

1990 4.05

2000 3.31

2010 2.60

8 0
3 years ago
Other questions:
  • What do you mean by chemical reaction ?​
    14·1 answer
  • Choose all the answers that apply. Metamorphic rock is:
    10·1 answer
  • I have a rock with the mass of 4.8 and a volume of 2.3.
    12·2 answers
  • Which describes the correct number and types of atoms in this molecular structure?
    13·1 answer
  • How many protons are in the nucleus of an atom with an atomic number of 15?
    8·1 answer
  • If i have 340mL of a 1.5 M NaBr solution, What will the concentration be for 1000mL?
    7·1 answer
  • HELP!!!!!!!!!!!!!!
    9·2 answers
  • Is change in atmospheric co2 levels likely to impact marine life
    14·1 answer
  • Công thức toingr quát anken
    15·1 answer
  • Fe(OH)2+HCI--&gt; FeCl2+H2O balanced​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!