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
alexira [117]
2 years ago
11

What is the pH of an aqueous solution with the hydronium ion concentration

Biology
1 answer:
Anni [7]2 years ago
8 0

Answer:

pH = 13.70

Explanation:

pH is a value used in chemistry to determine nature of solutions, quality of several chemicals, etc.

pH is defined as -log [H₃O⁺]

A solution with molar concentration of hydronium ion, H₃O⁺. of 2x10⁻¹⁴M, has as pH:

pH = -log [2x10⁻¹⁴M]

pH = 13.70

You might be interested in
I NEED HELP WITH ALL PLZ PLZ
viva [34]
Water freezes at 0°C, the lowest possible temp for any material is absolute zero and also most of these u can just google good luck!
3 0
2 years ago
If you see a fossil fish in a museum that is labeled one of the earliest fish known, what era is it probably from?
Korvikt [17]
I think it is from the Paleozoic era

Hope this helps
3 0
2 years ago
Read 2 more answers
Which of the following most likely represents a prototype for the concept indicated in parentheses?
garri49 [273]

Answer:

A golden retriever.

Explanation:

Prototype may be defined as the member among the group that is characterized as more central than the other member of the group. Prototype can be used in the taxonomy as well as in the evolutionary history as well.

The prototype is the main representative member of the group. The golden retriever dog is the most common member among all the members listed in the question. Hence, the golden retriever (dog) is considered as the prototype.

Thus, the correct answer is option (e).

7 0
3 years ago
The thymus is the only lymphoid organ that does not ________.
mr_godi [17]
It does not produce hormones
4 0
3 years ago
What would be the best negative control to use when testing for any organic compounds
ra1l [238]

Explanation:

A similar question was asked online, here is the answer it gave:

'“Negative control” is a treatment that by definition is expected not to have any effect (neither positive effect, nor negative effect). “Positive control” is treatment with a well-known chemical that is known to produce the expected effect with the assay that you are studying. Application of an antagonist is not a negative control in your case. “Negative control” is condition that should be treated with the same solutions or buffers as your “treatment” condition, with the only difference that instead of the chemical that you investigate you should add just the solvent that was used to dissolve you chemical in the respective final concentration that you have in the “experimental treatment” condition. For example if your chemical is dissolved in DMSO – than the correct negative control will be to add to the medium/buffer just DMSO in the same final concentration that you reach with your “treatment” condition. One of the reasons of using such negative control is to verify that the solvent is having no effect in your assay. Note that among all treatment conditions (“negative control”, “positive control”, “experimental treatment you are investigating”) the volumes and the composition of the treatments that you are doing should be uniform: always treat with the same volume of medium or buffer, always containing the same concentration of the used solvent (e.g., DMSO). The only difference should be the presence or absence of the defined compound-treatments (agonist, antagonist, the chemical for the experimental investigation etc.).'

My best advice is to use the textbook you have, or use examples of a negative control when testing organic compounds because you have to find something that you can assign, like a worm in a box of dirt, the worm could have enough food to survive, so that is your negative control, but when it comes to finding the best, that would have to rely on something within the parameters of being self sufficient like a plant getting its energy from photosynthesis, etc.

Atanasov, Atanas. (2013). Re: Positive control and negative control. Retrieved from: https://www.researchgate.net/post/Positive_control_and_negative_control/515968f2d039b1fe50000025/citation/download.

7 0
3 years ago
Other questions:
  • The staff nurse is a member of the disaster planning committee at a local hospital and will give a presentation to the community
    5·1 answer
  • Which two factors can both cause a population to increase
    11·2 answers
  • A cell is said to have reached the metaphase stage of mitosis when
    13·1 answer
  • Which pairings match protozoa with the structures they use to move? amoeba: flagellum; euglena: cilia; paramecium: pseudopod amo
    13·1 answer
  • Water's high heat of vaporization allows it to cool us off when we sweat.<br> True<br> False
    13·1 answer
  • Describe homeostasis?
    8·1 answer
  • All of the organisms are important as producers in the food chain and as producers of oxygen, with the exception of?
    11·1 answer
  • How many people lived in North America before the Europeans arrived ?
    7·1 answer
  • Producing atp without oxygen in minimal amounts<br> is what?<br> helpppp plzzzzzzz
    11·2 answers
  • The Hardy-Weinberg law is used to calculate allele and genotype frequencies ____. Question 1 options: in small populations when
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!