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
slega [8]
3 years ago
14

Calculate the ph of 0.200 mol dm–3 ethanoic acid (pka = 4.76).

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
4 0
See attachment file below.
Use formulas relating pka, ka, and ph


Hope it helped!

You might be interested in
Which metal does not form cations of differing charges?
valkas [14]

Transition metals

Most transition metals differ from the metals of Groups 1, 2, and 13 in that they are capable of forming more than one cation with different ionic charges. As an example, iron commonly forms two different ions

8 0
2 years ago
Can someone check my chem questions?
alekssr [168]
All of them are correct! good!!
7 0
3 years ago
How do purple stem plants use there energy
tatuchka [14]
Purple stem plants can be formed by genetics, they use their energy slightly different from other plants, they use less energy, but that may also be because of bad nutrition, and because they may be hungry for nutrients.
5 0
3 years ago
Read 2 more answers
Power gathered from the sun and wind
Mademuasel [1]

Answer: B. Can provide humans with energy forever

Explanation:  The warm air rises and cooler air rushes in to take its place. The moving air is wind. As long as the sun shines, there will be winds on the Earth. We will never run out of wind energy.

7 0
3 years ago
Read 2 more answers
A chemical test has determined the concentration of a solution of an unknown substance to be 2.41 M. a 100.0 mL volume of the so
Oksana_A [137]

Answer : The molar mass of unknown substance is, 39.7 g/mol

Explanation : Given,

Mass of unknown substance = 9.56 g

Volume of solution = 100.0 mL

Molarity = 2.41 M

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

\text{Molarity}=\frac{\text{Mass of unknown substance}\times 1000}{\text{Molar mass of unknown substance}\times \text{Volume of solution (in mL)}}

Now put all the given values in this formula, we get:

2.41M=\frac{9.56g\times 1000}{\text{Molar mass of unknown substance}\times 100.0mL}

\text{Molar mass of unknown substance}=39.7g/mol

Therefore, the molar mass of unknown substance is, 39.7 g/mol

5 0
3 years ago
Other questions:
  • 3.74 ml of carbon dioxide (CO2) accidentally escaped during the experiment, what volume in liters would that be?
    13·2 answers
  • Eva is performing an experiment to determine which type of disinfectant kills the most bacteria. She has six plates of the same
    11·2 answers
  • Is the haber process for the industrial synthesis of ammonia spontaneous or nonspontaneous under standard conditions at 25 ∘c? n
    9·1 answer
  • Which of the following is the most acidic?
    14·1 answer
  • In the soap testing experiment, what is the purpose of adding some MgCl2 to the soap solution at the end?
    5·1 answer
  • How do you balance nuclear equations?
    13·1 answer
  • The reaction converting glycerol to glycerol-3-phosphate is energetically unfavorable by 9.2 kJ. The reaction of ATP with water
    12·1 answer
  • Of the five elements Al, Cl, I, Na, Rb, which has the most exothermic reaction? (E represents an atom.) What name is given to th
    12·1 answer
  • How can you recognize an alcohol?
    11·1 answer
  • What are the two main classes of simple machines?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!