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
andreyandreev [35.5K]
3 years ago
9

What is the ph of 20 ml of ph = 2 solution is diluted to a final volume of 600 mL

Biology
1 answer:
alexgriva [62]3 years ago
6 0

Explanation:

Hydrogen atoms contain 1 proton and 1 electron while being devoid of neutrons. When they lose their electron they form an ion or H+, a particle carrying a unit of positive charge.  pH measures how basic or acidic a water-based solutions are, with a formula for pH is

pH = -log[H+].

...where pH is -base 10 log of the concentration of hydrogen ions within the solution.

Initial volume= 20 mL

Final volume= 600 mL

# of dilutions= \frac{600}{20} = 30

for a pH 2= [H+]= 10^{=2}

∴ [H+]=  \frac{10^{-2}}{30} = 3.333 * 10^{-4}

and pH is an antilog of [H+]= - log \frac{10^{-2}}{30} = 3.333 * 10^{-4}

∴pH = 3.47

Learn more about pH at brainly.com/question/4981491

Learn more about pKA at brainly.com/question/11062486

#LearnWithBrainly

You might be interested in
Which of the following is incorrectly paired with its function? A. epididymis - storage of sperm B. testes - production of sperm
spin [16.1K]

Answer:

Ureters - These are long narrow tubes that carry urine from the kidneys to the urinary bladder. They are not what carry urine from the bladder to the outside of the body. That is called your Urethra.

Explanation:

4 0
3 years ago
Which of the following statements about plankton or nekton is NOT correct?
Oduvanchick [21]

Answer:

C. All plankton are closely related to plants.

Explanation:

Plankton are organisms found in water that exist in a drifting state. They are too small or weak to swim on their own, so they let the current or tide carry them. They are usually microscopic but include larger species as well, such as some crustaceans and jellyfish.

Phytoplankton are autothrophic plankton. This means that they produce their own food. They are primary producers and closely related to plants.

Zooplankton are heterotrophic plankton, which means that they feed on other organisms. They are animals and aren't closely related to plants.

Nekton are organisms found in water that swim actively.

Based on this information, we can conclude that statement C is the only incorrect statement.

6 0
3 years ago
Identify the picture below in which the sunlight is the most direct.
Shkiper50 [21]

Answer: Image D has the most direct sunlight

Explanation:

Since direct sunlight is supposed to be intense, it can't be B or C. Sunlight is most intense in summe, so winter and fall are out. Now we have A and D left. The sun is illustrated in image D and the area the sun covers is larger than image A's, so image D has the most direct sunlight.

8 0
2 years ago
Read 2 more answers
The body obtains sugar from food. Which system most directly affects blood sugar levels?
frozen [14]

Answer: digestive is the correct answer

5 0
3 years ago
Read 2 more answers
When you talk about carbohydrates in a diet, people mostly think of foods containing grains, like bread and pasta. What else in
andrew-mc [135]

Answer:

Carbohydrates are found in a wide array of both healthy and unhealthy food,bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie. They also come in a mixture of forms. The usal  common and abundant forms are sugars, fibers, including starches.

Explanation:

6 0
3 years ago
Other questions:
  • While surveying his apple trees, a farmer discovers a particular tree that produces apples with perfect size, color, and flavor.
    12·1 answer
  • Ostealgia is ________.
    11·1 answer
  • A decrease in the grass population will most immediately decrease the available energy for the
    5·1 answer
  • Why do body cells in plants and animals have an even number of chromosomes?
    11·1 answer
  • Need help with this ??
    7·2 answers
  • Which is the pair of the enzyme activities most significantly affected by glucagon- and insulin-dependent phosphorylation and de
    14·1 answer
  • Fossils of a microscopic organism are found in rocks determined to be over 3.5 billion years old. Identify TWO types of evidence
    6·1 answer
  • Please help question in the picture
    15·1 answer
  • What happens when electrons are passed down the electron transport chain?
    14·1 answer
  • Place the levels of an ecosystem in the correct order from smallest to largest
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!