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
Rufina [12.5K]
3 years ago
15

Does anyone know What does pH= ?

Chemistry
2 answers:
Lesechka [4]3 years ago
4 0
Answer:  Yes.  The pH = 7.6   .
___________________________________________________
Explanation:
____________________________________________________


pH = - log [H⁺]   ; in which, by convention, we assume that there
                            is an implied "base 10" if there is no number listed as a
                            "base" under the "log" sign;

i.e. , " pH = - log [H⁺]⁺ = - log₍₁₀₎ [H⁺] ;
________________________________________________
in which, the:  " [H⁺] " refers to the concentration of hydrogen ions, or " H⁺ " ; in "Molarity" ; that is:  "moles of solutes per Liters of solution", or "mol / L", or "M" .
________________________________________________
Likewise, "pOH = - log [OH⁻] =  - log₍₁₀₎ [OH⁻] " .
________________________________________________
  Note:  pH  + pOH = 14 .
________________________________________________
So, given:  "A solution with 6.4 * 10⁻¹⁰ M  OH (in our problem), find the "pH".
_________________________________________________
   The pOH of the solution is 6.4 .
_________________________________________________
Since pH + pOH = 14 ; 
               we can substitute "6.4" for "pOH" ; and solve for "pH":
_________________________________________________
      pH + 6.4 = 14 ;

        Subtract "6.4" from each side of the equation; to isolate "pH" on one side of the equation; and to solve for the "pH" ;
_________________________________________________
      pH + 6.4 − 6.4 = 14 − 6.4 ;
_________________________________________________
      pH = 7.6   .
_________________________________________________
LiRa [457]3 years ago
3 0
If i am not mistake u can use -log[concentration of oh-] to find it
ie -log[6.4*10^-10]=9.19
You might be interested in
Why is it illegal to manufacture fireworks without a license
victus00 [196]

Illegal Explosives. Illegal explosives associated with the fireworks season are inherently dangerous because of their composition and unpredictability. Homemade explosives can pose a particular risk for injury because the people making them often lack knowledge and experience in manufacturing fireworks.

3 0
3 years ago
Which elements are considered metals? Non-metals? Metalloids?
kolbaska11 [484]

The answer is in the photo.

3 0
2 years ago
Carbon-14 is an isotope used in carbon dating. The nucleus becomes Nitrogen-14 through beta decay. Its half-life is 5370 years.
frosja888 [35]

Answer:

If the half-life of 14C is 5730 years, when this period of time has passed it will have been halved, it is called the exponential decay law of radioactive isotopes.

8 0
3 years ago
11,12,13,14 please...
jekas [21]
11. D
12.C
13. For 13 i would say B but not so sure
14. A
5 0
2 years ago
Balance the following chemical reaction. ____NaOH+____H2SO4 → ___Na2SO4+____H2O
kobusy [5.1K]
The balanced equation would be 2NaOH + H2SO4 → Na2SO4 + 2H2O
7 0
3 years ago
Other questions:
  • Your friend makes the statement that, “Water boils at a higher temperature than ethanol.” To which step of the scientific method
    9·1 answer
  • How do you convert 642cg to kilograms
    11·2 answers
  • According to the equation below, how many moles of PbO are required to generate 3.88×1023 nitrogen molecules?
    6·1 answer
  • If there is a New Moon at midnight on October 1, when would the next New Moon occur?
    6·1 answer
  • What ion does a base increase
    11·1 answer
  • In a polyatomic ion, the -ate ending indicates one ____ oxygen than the -ite ending.
    7·1 answer
  • Ranjit titrates a sample 10.00 mL of Ba(OH)2 solution to the endpoint using 12.58 mL of 0.1023 M H2SO4.
    9·1 answer
  • Molecules condense when the temperature ______________.<br> A. increases<br> B. decreases
    5·2 answers
  • Calculate the pressure of 2.50 Liters of a gas at 25.0oC if it has a volume of 4.50 Liters at
    7·1 answer
  • 50 ml of soil was mixed with 50 ml of water if the total volume of the mixture is found to be 77 ml what would be the volume of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!