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
Serga [27]
3 years ago
5

A. glycerol

Chemistry
1 answer:
Natasha2012 [34]3 years ago
4 0
Bzjnu8:i9.8&9olzlns soccer
You might be interested in
Enough of a monoprotic acid is dissolved in water to produce a 1.64 M solution. The pH of the resulting solution is 2.82 . Calcu
Lady bird [3.3K]

Answer:

Ka = 1.39x10⁻⁶

Explanation:

A monoprotic acid, HX, will be in equilibrium in an aqueous medium such as:

HX(aq) ⇄ H⁺(aq) + X⁻(aq)

<em>Where Ka is:</em>

Ka = [H⁺] [X⁻] / [HX]

<em>Where [] is the molar concentration in equilibrium of each specie. </em>

The equilibrium is reached when some HX reacts producing H+ and X-, that is:

[HX] = 1.64M - X

[H⁺] = X

[X⁻] = X

As pH is 2.82 = -log [H⁺]:

[H⁺] = 1.51x10⁻³M:

[HX] = 1.64M - 1.51x10⁻³M = 1.638M

[H⁺] = 1.51x10⁻³M

[X⁻] = 1.51x10⁻³M

And Ka is:

Ka = [1.51x10⁻³M] [1.51x10⁻³M] / [1.638M]

<h3>Ka = 1.39x10⁻⁶</h3>
6 0
3 years ago
Identify this compound: KClO4
lidiya [134]

Answer: Potassium perchlorate

Explanation:

3 0
2 years ago
Read 2 more answers
Which are balanced and which are unbalanced?
erica [24]

A. is balanced

B. is not balanced

C. is not balanced

3 0
3 years ago
How many grams of carbon are present in 45.0 g of CCl4?
lisabon 2012 [21]
To determine the amount of a certain element in a compound, we use the ratio of the elements from the compound. We calculate is follows:

45.0 g CCl4 ( 1 mol CCl4 / 153.82 g CCl4 ) ( 1 mol C / 1 mol CCl4 ) ( 12.01 g C / 1 mol C ) = 3.5135 g carbon present

Hope this answers the question. Have a nice day.
5 0
3 years ago
The average atomic mass of a sample of an element X is 16.2u. What are the percentages of isotopes X (mass number 16, atomic num
belka [17]

Answer:

isotopes of hydrogen are protium,deuterium and tritium

8 0
3 years ago
Other questions:
  • Mercury(II) oxide (HgO) decomposes to form mercury (Hg) and oxygen (O2). The balanced chemical equation is shown below.
    8·2 answers
  • A solar eclipse will last 1 to _____ minutes.
    10·2 answers
  • 25
    6·1 answer
  • What is the frequency in hertz of the blue light having a wavelength of 4.25×10^-11
    10·1 answer
  • The density of silver is 10.5 g/cm3. What is the volume of the silver if it has a mas of 38.4 g
    12·1 answer
  • I will give u 14 points if u get this right​
    9·1 answer
  • If 0.500 mol of acetylene is allowed to completely react with oxygen, what is the final yield of CO2 in moles?
    8·1 answer
  • Plz help me with this:
    14·1 answer
  • The method by which the substances in a mixture are separated is called what?
    14·1 answer
  • Write the chemical equation for this reaction. Use the picture I provide!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!