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
elena-14-01-66 [18.8K]
4 years ago
8

Calculate the ph of a 0.10 m solution of hypochlorous acid, hocl. ka of hocl is 3.5×10−8 at 25 ∘c. express your answer numerical

ly using two decimal places.
Chemistry
1 answer:
Viktor [21]4 years ago
3 0

Answer:

4.23.

Explanation:

<em>∵ pH = - log[H⁺].</em>

<em>For weak acids:</em>

∵ [H⁺] = √(ka)(c).

∴ [H⁺] = √(3.5 × 10⁻⁸)(0.10 M) = 5.92 x 10⁻⁵.

∴ pH = - log[H⁺] = - log(5.92 x 10⁻⁵) = 4.2279 ≅ 4.23.

You might be interested in
use the Gizmo to create a path for carbon that begins and ends in the atmosphere. Fill in the steps in the path below. Then, lab
Arturiano [62]
Answer:
Volcanoes, burning fossil fuels, and respiration of organisms.
Explanation:
Volcanoes, burning fossil fuels, and respiration of organisms releases carbondioxide that forms atmospheric carbondioxide. The carbon enters in the biosphere through the process of photosynthesis. In plants, carbondioxide enters in the plant body which is used as a reactant from which food is prepared. The carbon present in the plant body in the form of glucose which can be transferred into another organism due to feeding of organisms. The organism released this carbon in the form of carbondioxide when the eaten food is broken down for the release of energy. In that way, carbon moves from biosphere to the atmosphere whereas Volcanoes and burning fossil fuels releases carbon in the atmosphere, in this way carbon moves from lithosphere to atmosphere.
4 0
3 years ago
Which applies to latitudes father from the equator
konstantin123 [22]
Higher elevations...
8 0
3 years ago
What is the molar concentration of h3o+ in a cola that has a ph of 4.240?
Andreyy89

The pH is calculated using the expression: pH = - log [H3O+].  
 To find the concentration of [H3O+] 
 [H3O+] = 10^(-pH)  
 Solving the RHS we have 10^(-4.240) = 0.1440 
 Hence the concentration of H3O+ is 0.1440.
6 0
3 years ago
What is the basic (smallest) unit of matter
seropon [69]

Answer:

atom

Explanation:

7 0
3 years ago
The system by which organisms get and give energy is
Debora [2.8K]

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.

4 0
3 years ago
Other questions:
  • What would be the temperature of 50 g of 20°c water mixed with 80g of 40°c water?
    14·1 answer
  • Type the letter that represents the correct location for each particle type below.
    9·2 answers
  • Which statement about matter is TRUE?
    15·2 answers
  • The activation energy for the reaction no2(g)+co(g)⟶no(g)+co2(g) is ea = 100 kj/mol and the change in enthalpy for the reaction
    8·1 answer
  • Soap is made of molecules with atoms that share electrons equally at one end and atoms that have a slight charge at the other en
    14·1 answer
  • Prepare a 1.00 L of a 0.25 M solution of sodium carbonate. Determine the amount of sodium carbonate needed in correct significan
    9·1 answer
  • Position in the periodic table.
    12·1 answer
  • What is the percentage of oxygen in carbon dioxide? (CO2) *
    11·1 answer
  • What two parts are needed to make a neutral atom of neon
    8·1 answer
  • Pls help !! it’s a timed quiz answer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!