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
Anna [14]
2 years ago
9

Rank the following salts in order of decreasing pH of their 0.1 M aqueous solutions:FeCl₂ , FeCl₃ , MgCl₂ , KClO₂

Chemistry
1 answer:
Natalija [7]2 years ago
3 0

The pH of the salts in decreasing order is FeCl2, FeCl3, MgCl2, KClO2.

What is pH?

pH is an expression of hydrogen ion concentration in water. Specifically, pH is the negative logarithm of hydrogen ion (H+) concentration (mol/L) in an aqueous solution:

pH = -log10(H+)

The term is used to indicate basicity or acidity of a solution on a scale of 0 to 14, with pH 7 being neutral.

As the concentration of H+ ions in solution increases, acidity increases and pH gets lower, below 7. When pH is above 7, the solution is basic.

Because pH is a logarithmic function, one unit change in pH indicates a 10x change in H+ concentration in that solution.

However, what is actually measured is hydrogen ion activity, not concentration.

To learn more about pH: brainly.com/question/13982975                                                                                #SPJ4

You might be interested in
How to calculate the frequency of an ion
sergij07 [2.7K]

solution:

You need to find the frequency, and they have already given you the wavelength. And since you already know the speed of light, you can use formula (2) to answer this problem. Remember to convert the nano meters to meters because the speed of light is in meters. (1 nm = 1.0 x 10^{-9} m)

v=c\lambda \\v= (3.00 \times 10^8 m/s)/(6.9\times 10^-7 m) \\v = 4.35 \times 10^{14} s^{-1}

8 0
3 years ago
Describe the formation of ions by electron loss or gain
Ronch [10]

Explanation:

Ions form when atoms gain or lose electrons. This is so that they form a full outer shell of electrons. When an atom gains electrons it becomes a negative ion, because electrons are negatively charged. For example, all halogens (group 7 or 17) form negative ions as they gain an electron forming a 1- charge. When an atom loses electrons it becomes a positive ion, as it is losing some negative charge from the electrons. This would be for example, alkali metals (group 1) which lose an electron to form a positive ion with a 1+ charge, (ALL metals form positive ions).

6 0
2 years ago
What is the temperature of 0.5 moles of water vapor that occupies 120 dm3 and applies a pressure of 15,000 Pa to its container?
MArishka [77]
Use the ideal gas law:

PV = nRT

so, T = PV / nR

n=0.5
V= 120 dm^3 = 120 L  (1 dm^3 = 1 L)
R = 1/12
P = 15,000 Pa =  0.147 atm     (1 pa = 9.86 10^{-6} )

Put the values:

T = PV / nR
T = (0.147) (120) / (0.5) (1/12)
T= 426 K
6 0
3 years ago
Identify the element: 6 energy level, metallic, 82 election
Lady bird [3.3K]

<u>Answer</u>:-

Name of element = Lead

Symbol ♾ of Lead = Pb

Atomic no. = 82

Atomic mass = 207.2 amu

No. of protons = 82

No. of electrons = 82

Yes, lead(Pb) is a metallic element and certainly it has 6 electron shells which means 6 energy level.

If you find anything unclear you can ask me...

6 0
3 years ago
34 Points!! 17 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!
Katarina [22]

Answer:

I think it is A _ B_C_D

Explanation:

4 0
3 years ago
Other questions:
  • The attraction of like water molecules to each other is called _____.
    8·1 answer
  • What is radium used for
    15·1 answer
  • Which element has chemical properties that are most similar to the chemical properties of sodium?
    13·1 answer
  • How would you define Acid
    9·1 answer
  • What is the mass in grams of 1.00 x 10 24 atoms of Mn?
    13·2 answers
  • Carbon in the atmosphere is most often found as which of the following compounds? A. stratospheric ozone B. fossil fuel C. carbo
    5·1 answer
  • 99<br> 96<br> 040Zr<br> +<br> 42He<br> ----&gt;<br> + "42Mo
    5·1 answer
  • Definition: These are the layers of rock or soil that are distinguishable from other layers that have been
    9·1 answer
  • A nuclear magnetic resonance, or NMR, spectrometer is an instrument that can be used to characterize molecules based upon the ex
    11·1 answer
  • Help me pls<br>nayone here<br>50 points<br>freee ​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!