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
RUDIKE [14]
3 years ago
8

Phosphoric acid is a triprotic acid with the follow Ka values: Ka1 = 7.2x10−3, Ka2 = 6.3x10−8, Ka3 = 4.2x10−13 Based on this inf

ormation, What is the Ka of HPO42-? What is the Kb of HPO42-? Is HPO42- acidic, basic, or neutral?

Chemistry
2 answers:
german3 years ago
5 0

Answer:

A. 4.2 × 10^-13

B. 0.024

C. Acidic

Explanation:

Below is an attachment containing the solution

klasskru [66]3 years ago
3 0

Answer:

Explanation:

Step 1

Phosphoric Acid is a triprotic acid where H3PO4 dissociates to H2PO4- which then further dissociates HPO42- and it then forms PO43-. Equation for acid dissociation constant for the dissociation of H3PO4 and HPO42- can be written as above.

Step 2

Concentration of H2PO4- produces during the dissociation of H3PO4 can be determined by constructing an ICE table.

Step 3

Concentration of HPO42- produces during the dissociation of H2PO4- can be determined

You might be interested in
Hey can someone help me and show work please
Ivahew [28]

Answer: 2.54g

Explanation:

Molar Mass of H2O2 = (2x1) + (2x16) = 34g/mol

1mole (34g) of H2O2 contains 6.02x10^23 molecules

Therefore Xg of H2O2 will contain 4.5x10^22 molecules i.e

Xg of H2O2 = (34x4.5x10^22)/6.02x10^23 = 2.54g

5 0
3 years ago
Please help me for real
Bond [772]

Answer:

I believe it is the replication fork. so B

Explanation:

I haven't done this section in quite some time. this was biology for me, and I'm in chem right now. so I hope that's right. I hope I could help you :)

7 0
3 years ago
How many grams of H2 are needed to produce 13.33g of NH3?
Zanzabum

The reaction to form NH3 is : N2 + 3H2-> 2NH3 12,33g NH3 is 12,33/17,03=0,3 =0,724 moles of NH3 moles NH3. So you need 1,5*0,724 = 1,086 moles H2 1,086*2,016 = 2,189 g of H2 is needed ro form 12,33 g NH3

3 0
3 years ago
Who else listens to sad music and think of something there not?
Likurg_2 [28]

Answer:

Meeee:(

Explanation:

8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!
Darina [25.2K]
None of the above I believe it is what can form a tornado??
3 0
3 years ago
Other questions:
  • What is the universal solvent?<br><br> A:oil<br><br> B:acid<br><br> C:water<br><br> D:hydrogen
    9·2 answers
  • Which of the following is NOT an example of how watersheds can change over time?
    5·1 answer
  • Does all matter have mass and takes up space? <br><br> True <br><br> False
    14·1 answer
  • Which of the following statements are true? I. Models are always wrong unless they are proved by a theory. II. Elements, such as
    8·1 answer
  • Suppose of iron(II) bromide is dissolved in of a aqueous solution of silver nitrate. Calculate the final molarity of bromide ani
    10·1 answer
  • Please help and explain
    13·1 answer
  • A sample of gas has a mass of 827 mg . Its volume is 0.270 L at a temperature of 88 ∘ C and a pressure of 975 mmHg . Find its mo
    11·1 answer
  • PLEASE HELP ASAP IT'S TIMEDDDDD​
    10·1 answer
  • When the season changes and a bird migrates, the bird is responding to which of these?
    15·1 answer
  • I need some help with crush advise. So basically i have a crush on this dude but i don't think he know me we are not in the same
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!