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
jeka57 [31]
3 years ago
6

Enough of a monoprotic acid is dissolved in water to produce a 0.0121 M solution. The pH of the resulting solution is 6.49. Calc

ulate the Ka for the acid.,
Chemistry
1 answer:
Hitman42 [59]3 years ago
4 0
Calculate the H positive from the pH equation: pH equals -log (H positive). This would be 10 to the -6.49. Let's call the acid HA. To calculate Ka in this equation, Ka equals H positive times A- over HA. HA is going to be the 0 0121. So, Ka=(10^-6.49)^2/0.0121. This equals 1.05*10^-13/0.0121. Ka then equals 8.65*10^-12.
You might be interested in
What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20. °C and standard pressure?
KatRina [158]

Answer:

1.14 mol

Explanation:

3 0
2 years ago
An unknown substance has been shown to have metallic bonds.
gladu [14]
This is the correct answer please mark me as brainliest

6 0
3 years ago
Read 2 more answers
Convert a speed of 259 cm/s to units of inches per minute. Also, show the unit analysis by dragging components into the unit‑fac
igomit [66]

Answer:

6118.11\frac{in}{min}

Explanation:

Hello,

In this case, by knowing that 1 inch equals 2.54 cm and 60 seconds equals 1 min, the resulting value results:

=259\frac{cm}{s}*\frac{1in}{2.54cm}*\frac{60s}{1min}\\   \\=6118.11\frac{in}{min}

Best regards.

5 0
3 years ago
1. Draw a wedge/dash structure for trans-1,2-dimethylcyclohexane.
Angelina_Jolie [31]

Answer:

The structure with the ring flipped is the most stable

Explanation:

We have the  trans 1,2 - dimethylcyclohexane. With the wedge/dash structure we could not figure is this form is stable (If we do a comparison with the cis structure). But when we do a chair structure and ring flipped structure, this is easier to look.

The picture attached shows the structures, they are labeled as 1, 2 and 3, according to this problem.

In the chair structure, according to the picture below, you can see that both methyls are heading in the axial positions of the ring (One facing upward and the other downward). This is pretty stable, however, when the methyls are in those positions, the methyl position 1, can undergoes an 1,3 diaxial interactions with the hydrogens atoms (They are not drawn, but still are there), so this interaction makes this structure a little less stable that it can be.

On the other side, the ring flipped structure, we can see that both methyls are in the equatorials positions of the ring, and in these positions, it can avoid the 1,4 diaxial interactions with the hydrogens atoms, making this structure the most stable structure.

Hope this helps

6 0
3 years ago
Whats the difference between Homogeneous and Hetrogeneuos?
irakobra [83]

Answer:

Homogeneous - With a uniform appearance

Heterogeneous - With visible differences in the mixture

Explanation:

Referring to mixtures, homogeneous looks the same throughout, while heterogeneous has particles or whatnot.  

Basically:

Homo means same

Hetero means different

6 0
3 years ago
Other questions:
  • When matter is broken down physically by wind or chemically by salt water, what is this known as?
    12·1 answer
  • “Copper nitrate is a” <br><br> Symbol <br><br> Name <br><br> Chemical formula
    14·2 answers
  • What is iridium iii phosphate monohydrate chemical formula
    9·2 answers
  • How many moles of 90gm of water
    14·1 answer
  • During resperation______.
    15·1 answer
  • Which is the atomic number of an atom with six valence electrons
    10·1 answer
  • A solution of ammonia has a pH of 11.8. What is the concentration of OH– ions in the solution? Useful formulas..
    7·2 answers
  • Describe a procedure to separate a mixture of sugar, black pepper, and pebbles.
    12·1 answer
  • How many moles are there in 1.68 * 10 ^ 24 molecules of nitrogen dioxide?
    9·1 answer
  • What is the molar mass of ammonium sulfite
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!