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
stellarik [79]
3 years ago
14

What is [h3o ] in a solution of 0.075 m hno2 and 0.030 m nano2?

Chemistry
1 answer:
Tanya [424]3 years ago
8 0
Answer is: concentration of hydrogenium ions is 9,54·10⁻⁵ M.
c(HNO₂) = 0,075 M.
c(NaNO₂) = 0,035 M.
Ka(HNO₂) = 4,5·10⁻⁵.
This is buffer solution, so use <span>Henderson–Hasselbalch equation:
pH = pKa + log(c(</span>NaNO₂) ÷ c(HNO₂)).
pH = -log(4,5·10⁻⁵) + log(0,035 M ÷ 0,075 M).
pH = 4,35 - 0,33.
pH = 4,02.
<span>[H</span>₃O⁺] = 10∧(-4,02).
<span>[H</span>₃O⁺] = 0,0000954 M = 9,54·10⁻⁵ M.
You might be interested in
With respect to the categories of assets, liabilities, and stockholders' equity presented on the balance sheet (statement of fin
Pavlova-9 [17]

Explanation:

GAAP is a generally accepted accounting principle in U.S. it refers to common sets of accepted accounting principle, standards, procedures that the companies and its accountants must follow in order to compile their financial statement.

IFRS are sets of international accounting standards That specify how the financial statements will disclose different types of transactions and other activities. The International Accounting Standards Board (IASB) issues IFRS which defines precisely how accountants are required to maintain and record their accounts. In an attempt to have an universal accounting system, IFRS was developed so that business and accounts can be interpreted from industry to industry, and country to country.

4 0
3 years ago
50 PONITS TO RIGHT AWNSERS!!!
Ivan
Distance and period of time is the correct answer

Hope this helps!
7 0
3 years ago
Read 2 more answers
The moon is 250,000 miles away. How many inches is it from earth?
Lapatulllka [165]

Answer:

1.584e10 = 15,840,000,000,000

Explanation:

250,000 miles

multiply the length value by 63360

25e4 x 63360

= 1.584e10

3 0
3 years ago
Read 2 more answers
Why is it better to use deionized water in chemistry experiments
Leno4ka [110]

Answer:

Laboratories use both distilled water and deionized water as controls in experiments. Deionization removes only non-charged organic matter from the water.

Explanation:

Distilled water removes even more impurities than deionization does, if the water undergoes a filtering process before boiling and distillation.

6 0
2 years ago
Which elements are solid at room temperature
Kryger [21]

Answer:bromine , neon , helium , argon , lithium , beryllium

Explanation:

8 0
3 years ago
Other questions:
  • Could a prokaryote have tissue , organs , and organ system ?
    14·2 answers
  • Students were asked to identify the location of elements in the
    9·1 answer
  • What is the energy required to go from a solid to a liquid called?
    9·1 answer
  • What volume of 12 M HCl solution is needed to make 2.5 L of 1.0 M HCI?
    7·1 answer
  • Which of the following is the flow of electrons through a wire or a conductor
    10·2 answers
  • ExxonMobil uses a(n) _____ appeal when it explains technical aspects of its products, such as lithium ion batteries, hydrogen te
    9·1 answer
  • Why does the moon spin around the earth and the earth spins around the sun
    7·1 answer
  • Which letter pattern best represents seafloor spreading? (Hint: Letter "f" represents the mid-
    10·2 answers
  • What is the molarity of 0.26 mol of H2SO4 dissolved in 0.3 L of solution? *
    14·1 answer
  • Timmyabc19, this is us.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!