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
Paladinen [302]
3 years ago
13

Open this simulation and click the Macro tab. The simulation allows you to check the pH scale of various liquid solutions. To ge

t started, go to the drop-down menu at the top of the page and select a liquid from the list. Use the dropper below the drop-down menu to add the liquid to the container. You can change the concentration of the solution
by adding water using the tap on the right. You can also drain the solution using the tap near the left of the container. At any point, check the pH scale of the solution by dragging the green scope to the container. Try checking the pH level of different solutions, and then answer the following questions.
Part A
What information does this computer model provide

Chemistry
1 answer:
vredina [299]3 years ago
4 0

Answer:The model shows how adding water to a fluid changes its concentration and, in turn, its pH.

Explanation:

You might be interested in
Give the conjugate base for each compound below.? Acid --- Conjugate Base H2S _________ HPO4^-2 _________ NH4+ _________ Update:
zhenek [66]
 <span>take away one proton from the acid to give its conjugate base. So 

HS- 

PO4^3- 

NH3</span>
8 0
3 years ago
Read 2 more answers
According to the all-or-none principle, what would happen if a cell were depolarized twice the normal amount needed to produce a
mixas84 [53]
According to the all-or-none principle, the thing that would happen if a cell were depolarized twice the amount needed to produce an action potential would be : Nothing would happen because the cell must be polarized to fire.

all-or-none principle stated that the strength by which muscle fiber respond to a stimulus is independent to  the strength of the stimulus.
5 0
4 years ago
Calculate the number of moles of each compound, given the number of molecules.
brilliants [131]

Answer:

1.  2.46\times 10^{21} molecules of CO₂

2. 10⁴ molecules of H₂O

3. 8.75×10³² molecules of C₆H₁₂O₆

Explanation:

1.  2.46\times 10^{21} molecules of CO₂

2. 10⁴ molecules of H₂O

3. 8.75×10³² molecules of C₆H₁₂O₆

5 0
3 years ago
Trichloroacetic acid (HC2Cl3O2) is a corrosive acid that is used to precipitate proteins. The pH of a 0.072 M solution of trichl
Archy [21]

Answer:

Explanation:

HCl is strong acid, hence 0.04M of acid

= 0.057 M of H+

pH = -log [H+]

= -log [0.057]

= 1.244

Let the dissociation of trichloroacetic acid be:

HClO4 --> H^+ + ClO4^-

HA --> H+ + A-

0.072 - x x x

[H+] = 0.057 M

[HA] = 0.072 - 0.057

= 0.015 M

[H+] = [A-] = 0.057

Ka = [H+][A-]/[HA]

= (0.057^2)/(0.015)

= 0.217

= 0.22.

5 0
3 years ago
The orientation in space of an atomic orbital is associated with
Studentka2010 [4]

Answer:

  • Option c. the magnetic quantum number (ml)

Explanation:

The <em>electrons</em> in an atom are identified by four <em>quantum numbers</em>.

The four quantum numbers are:

<u><em /></u>

<u><em>1) Principal quantum number: n</em></u>

The principal quantum number (n) tells the main energy level of the electron. This can be any positive integer: 1, 2, 3, 4, 5, 6, 7.

<em><u>2) Angular momentum quantum number (ℓ)</u></em>

This second quantum number tells the subshell or kind of orbital. The kind of orbital determines the shape of the orbital.

The value of the angular momentum quantum number (ℓ) may be any integer from 0 to n - 1

        n                     feasible ℓ values

         1                         0

         2                        0, 1

         3                        0, 1, 2

         4                        0, 1, 2, 3

         5                        0, 1, 2, 3, 4

The association of the ℓ number and the kind (shape) of the orbital is summarized in this table:

       ℓ           shape

       0           s

       1            p

       2           d

       3            f

<em><u>3) Magnetic quantum number (mℓ)</u></em>

The magnetic quantum number (mℓ) tells the <em>orientation in space</em> of an atomic orbital.

The value of the magnetic quantum number (mℓ) depends on the value of the angular momentum quantum number (ℓ). The value of mℓ are from - ℓ to + ℓ.

For example, for ℓ = 2, p orbitals, the possible values of mℓ are -1, 0, +1, and they indicate that the p orbitals may be oriented along the x, y or z axis in the space, so you name those orbitals px, py, pz.

Hence, this gives you the correct answer to the question: <em>the orientation in space of an atomic orbital is associated with the magnetic quantum number (mℓ) (option c.)</em>

<em><u>4) Spin quantum number (s)</u></em>

Although it is more complex than that, it is understood that the spin quantum number (s) is related to the direction of rotation of the electron in the orbital.

5 0
3 years ago
Other questions:
  • How can you tell isotopes of the same element apart?
    6·2 answers
  • What is the hydronium ion concentration in a solution of HCl that has a pH of 4.65?
    10·2 answers
  • write a generalization correlating solubility with ionization. start with: "as compounds become more ionized,..."
    6·1 answer
  • How should the student label each circle in this diagram?
    15·1 answer
  • What best describes the physical property of solubility?
    12·2 answers
  • Which of the following represents the greatest number of moles? please help! :)
    12·2 answers
  • ;(((( MY HOMEWORK IS DUE IN 9 MINS HELP ITS IN MY PROFILE QUESTIONS ITS SPANISH :(((((((((( FOR A MOVIE QUESTIONS
    9·2 answers
  • Explain the relationship between overpopulation and diminishing water supplies.
    6·2 answers
  • Which answer best describes the meaning of submerged?
    13·2 answers
  • Why oxygen gas is very easy to compress when pressure is applied?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!