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
Semmy [17]
2 years ago
7

A pure sample of a monoprotic acid is dissolved in water. the sample is titrated with sodium hydroxide solution. at the point wh

ere 20.0 ml of the naoh solution has been added, the ph is 4.15. the phenolphthalein endpoint of the titration is observed when 50.0 ml of naoh have been added. what is the pka of the acid
Chemistry
1 answer:
Yakvenalex [24]2 years ago
6 0

Answer:

21 22 23 24 25 26 27 28 29 30

Explanation:

You might be interested in
Which of the following is not true of hydrogen?
Neko [114]
The answer is the first one
4 0
3 years ago
How many molecules of sulfur trioxide are in 78.0 grams?
Zarrin [17]
Molecular formula of sulfur trioxide is SO₃
Molar mass of SO₃ is -  32 + (16 x 3 ) = 80 g/mol
1 mol of any substance consists of 6.022 x 10²³ units. In 1 mol of SO₃ there are 6.022 x 10²³ molecules of SO₃
in 80 g of SO₃ - there are 6.022 x 10²³ molecules of SO₃
Therefore in 78 g of SO₃ - there are 6.022 x 10²³ /80 x 78 = 5.871 x 10²³ SO₃ molecules
7 0
3 years ago
A student found the mass of an object to be 26.5 g. To find the volume, the student submerged the object in a graduated cylinder
KonstantinChe [14]

Answer: The density of the object is 1.10 g/ml

Explanation: Density of object = ?

Mass of object = 26.5 g

Volume of object = volume of water displaced = 24.1 ml

Putting values in above equation, we get:

Density: \frac{26.5g}{24.1ml}  = 1.10g/ml

Thus density of the object is 1.10 g/ml

5 0
3 years ago
What is the maximum number of electrons that can occupy any atomic orbital?
Olegator [25]

Answer:

only 2 electrons can be occupied in atomic orbital.

6 0
3 years ago
Atoms in Group 18(8A) are inert (chemically unreactive) because
alexira [117]

Answer:

ghghcgkhhgghhjkjhgffghjklpkjihuygf

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which topic is Eunice's project most likely about?
    12·1 answer
  • Imagine two solutions with the same concentration and the same boiling point, but one has benzene as the solvent and the other h
    13·1 answer
  • Which of the following can convert nitrogen in the air into a form plants can use
    13·1 answer
  • Homogenous mixture are?
    8·1 answer
  • Adding powdered limestone (calcium carbonate) to a lake affected by acid rain can decrease the availability of phosphate ion, an
    14·1 answer
  • Which of the following expands to fill the container it is in, but can be compressed to a smaller volume when pressure is applie
    13·2 answers
  • A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Whi
    6·1 answer
  • PLEASE HELP ASAP!!!
    12·1 answer
  • Use the reaction to answer the question.
    10·1 answer
  • Please Help Me
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!