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
Elenna [48]
3 years ago
11

Calculate the pH of a 0.22 M ethylamine solution.

Chemistry
2 answers:
zheka24 [161]3 years ago
5 0

Answer:

pH = 10.1

Explanation:

For weak base solutions [OH] = SqrRt([Base]·Kb

Then, from pH + pOH = 14 => pH = 14 - pOH

[OH} = SqrRt[(0.22)(5.6 x 10⁻⁴)] = 3.91

pH = 14 - 3.91 = 10.1

evablogger [386]3 years ago
4 0

Answer:

answer is 12.18

Explanation:

(C2H5NH2, Kb = 5.6 x 10-4.)

You might be interested in
Which of the following describes the arrangement of valence electrons in a bond between H and F?
Sloan [31]
C; The Valence electrons spend more time around the atom of F
6 0
3 years ago
A valid lewis structure of __________ cannot be drawn without violating the octet rule. a valid lewis structure of __________ ca
Oxana [17]
A valid Lewis structure of IF3 cannot be drawn without violating the octet rule.

Answer: IF3 (Iodine Trifluoride)

This is because, I (Iodine) and F (Fluorine) both have odd number of valence electrons (7) which also means that there are too many valence electrons in the valence shell.
5 0
3 years ago
2. In the reaction NO + NO2 ⇌ N2O3, an experiment finds equilibrium concentrations of [NO] = 3.8 M, [NO2] = 3.9 M, and [N2O3] =
notsponge [240]
Kc= concentration  of  product  divided  by  concentration   of  reactant
NO +  NO2  ---->  N2O3

Kc =(N2O3)  /  (No)(NO2)

Kc= ( 1.3  )/{ (3.9)(3.8) }

Kc=0.088 (  answer  B)
4 0
3 years ago
Read 2 more answers
Which metalloid is often found in microchips, semiconductors, and sand?a. boron b. arsenic c. germanium d. silicon​
elena-14-01-66 [18.8K]

Answer:

silicon

Explanation:

Silicon. Silicon is often found in electronic devices, as well as the sand.

hope this helps UwU

5 0
2 years ago
Read 2 more answers
To what is wax susceptible
maks197457 [2]
Wax is definitely susceptible to heat and with the application of heat such as burning a candle, the solid wax gets converted into a liquid. This fact can be used to remove ear wax also actually using hollow candles that will melt the ear wax and allow it to be drained out of the ear. 
4 0
3 years ago
Other questions:
  • Why is it reasonable to assume the specific heats of naoh and hcl solutions are the same as water?
    5·1 answer
  • Write the equation for the production of one hexose sugar molecule from carbon dioxide
    5·2 answers
  • Which compound has the highest percent composition by mass of strontium
    6·1 answer
  • What volume of a 2.5 M stock solution of acetic acid (HC2H3O2) is required to prepare 100.0 milliliters of a 0.50 M acetic acid
    12·1 answer
  • A sample of dangerously reactive fluorine gas is contained in a stainless steel container which has a 31 L capacity at a pressur
    13·1 answer
  • What is the best step for the engineers to make next
    11·1 answer
  • Describe how a physical property such as mass or texture, can change without causing a Change in the substance
    12·1 answer
  • In a molecule of calcium sulfide, calcium has two valence electron bonds, and a sulfur atom has six valence electrons. How many
    7·1 answer
  • 22 Which of the following statements is true for all loving organisms? A. All living organisms are made of one or more cells wit
    14·2 answers
  • Choose the value for rotation to place triangle ABC on top of triangle DEF. How can you complete the transformation in only one
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!