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
dezoksy [38]
3 years ago
10

Use the Ka values for weak acids to identify the best components for preparing buffer solutions with the given pH values.

Chemistry
1 answer:
defon3 years ago
3 0

Answer:

pH= 1.9 then H_{3} PO_{4}

pH = 5.0 , CH_{3} COOH

pH = 3.9 , HCOOH

As we know range left pH= pKa+/- 1

You might be interested in
Given what you have learned about the hydrogen bonding shared between nucleic acids in dna, which pair is more stable under incr
Vinil7 [7]
Cytosine (C) and Guanine (G) are more steady under expanding heat since C and G have three hydrogen bonds while Adenine (An) and Thymine (T) have just two. The more hydrogen bonds there are, the more steady the nucleotides are. More bond dependability requires more warmth vitality to separate the securities, and since G≡C have more hydrogen securities than A=T, they are thusly more steady under expanding heat.
8 0
4 years ago
What does collide mean
Gala2k [10]

Answer:

hit with force when moving.

"she collided with someone"

Similar:

crash (into)

come into collision (with)

bang (into)

slam (into)

impact (with)

hit

strike

run into

meet head-on

smash into

smack into

cannon into

plow into

bump into

crack into/against

knock into

dash against

barrel into  -

come into conflict or opposition.

"in his work, politics and metaphysics collide"

Explanation:

7 0
3 years ago
Air is mainly a mixture of nitrogen and oxygen. Which gas is the main component?
NARA [144]

Answer:

Nitrogen is the main component because it comprises 78% of total air while oxygen comprises 21%

.

8 0
3 years ago
Read 2 more answers
A heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is a____. it for science class
Shkiper50 [21]
The heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is colloid. Because colloid has particles that are small enough to suspended but are as large that they can scatter light.
8 0
3 years ago
Somebody please help me!!
mariarad [96]

Answer:

The given isotope is Br 80

If 35 protons present then its atomic number is 35

Mass number is 80 so its meutrons are 45 because proton+ neutron = mass number

Its electron are 36 because of negative one charge

Explanation:

4 0
3 years ago
Other questions:
  • Which statememt describes gravity? Select three options
    5·1 answer
  • Use the particle theory of matter to explain why laundry detergents tend to work better in hot water than in cold water.
    5·2 answers
  • What has more inertia? Hammer or Feather?
    6·2 answers
  • Assuming all volume measurements are made at the same temperature and pressure, what volume of hydrogen gas is needed to react c
    7·1 answer
  • What is the ratio by mass of carbon to hydrogen in the compound c2h6?
    10·1 answer
  • When can I use ideal gas law?
    7·1 answer
  • A jeweler heated a sample of silver from 22.0°C to 46.0°C. The specific heat of silver is
    9·1 answer
  • !!NEED URGENT SCIENCE HELP!! Please help me with this I am so lost. I will mark you brainliest and like ur answer and rate it 5
    13·1 answer
  • How does the skeletal and muscular systems work together?
    10·2 answers
  • What is culture?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!