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
Irina18 [472]
2 years ago
11

What are the [H₃O⁺] and the pH of a buffer that consists of 0.55 M HNO₂ and 0.75 M KNO₂ (Kₐ of HNO₂ = 7.1X10⁻⁴)?

Chemistry
1 answer:
xxTIMURxx [149]2 years ago
5 0

The pH of the buffer that consists of 0.55 M HNO₂ is 3.3, which is acidic.

<h3>What is the common name for 0.55 M HNO₂?</h3>

The common name for 0.55 M HNO₂ is Nitrous acid. Only in solution, the gas phase, and in the form of nitrite salts is nitrous acid, a weak and monoprotic acid, known to science. Amines are converted into diazonium salts using nitrous acid. To produce azo colors, azo coupling processes use the resultant diazonium salts as reagents. A nitrogen oxoacid is a nitrous acid. It is a nitrite's conjugate acid. To treat cyanide poisoning, sodium thiosulfate is combined intravenously with nitrous acid (as sodium nitrite).

To learn more about Nitrous acid, visit:

brainly.com/question/17055219

#SPJ4

You might be interested in
What is the mass in grams, if you have 8.42 x 10^18 atoms of Bromine
Dahasolnce [82]

Answer:

84.2 grams

Explanation:

you have to multiply 8.42x10^18 to get the answer above

8 0
3 years ago
PLEASE HELP!!! CHEMISTRY
Lubov Fominskaja [6]
Hydrogen bonds are typically stronger than Van der Waals forces bc they are based on permanent dipoles, that form when hydrogen comes in vicinity of a highly electronegative atom (like F, N, or O). These bonds are long-lasting and pretty strong.

3 0
3 years ago
Please solve this for 13 points
Anit [1.1K]

Answer:

sodium

Explanation:

everybody already known its sodium

6 0
3 years ago
Why do a planets speed change in orbit
gayaneshka [121]

According to Kepler's  second law of orbital motion, a plane's orbital speed changes , depending on how far it is from the sun. The closer a planet is to the sun, the stronger the sun's gravitational pull on it, and the faster the planet moves.  The farther away from the sun, the weaker the sun's gravitational pull and the slower it moves in its orbit.

The orbit of a planet around the sun is not  a perfect circle, but  an ellipse - a flattened circle.


3 0
3 years ago
suppose a student poured equal volumes of water and naoh in two different flasks. he forgets to label his flasks and is confused
ArbitrLikvidat [17]

The one with higher temperature is the one with NaOH as heatis given off during the neutralization reaction that occurs.

<h3>What is volume?</h3>

Volume can be defined as the amount of space a substance or an objects occupies usually in a closed container.

Volume is measures in litres.

When water is added to dilute acid like HCl, they become more dilute.

When NaOH is added to HCl, a neutralization reaction occurs.

The student will determine the contents of the flasks by adding 10 ml of hcl to each flask. If the NaOH reacts with the Hcl, there will be an increase in temperature.

The increase in temperature is due to the heat of neutralization of the reaction between NaOH and HCl.

Learn more about volume at: brainly.com/question/1972490

#SPJ1

5 0
1 year ago
Other questions:
  • When 80 g of sodium hydroxide, naoh, are dissolved in enough water to make 500 ml of solution, the molarity of the solution is —
    5·1 answer
  • The aqueous hydroxide-promoted reaction of the compound with 2,2-dimethylpropanal (pivalaldehyde) at elevated temperature gives
    15·1 answer
  • For the cells in a human body, an isotonic solution is 0.9% NaCl. If a red blood cell is placed in a 1% NaCl solution, what will
    13·1 answer
  • Energy conversions _____. can lose energy as sound can be 100 percent efficient if controlled properly are calculated by multipl
    10·2 answers
  • A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 19.78 nm. What is the total wi
    9·1 answer
  • When the following equation is balanced what is the coefficient for CaCI2? Ca (s) + 2HCI (aq) —&gt; CaCI2 (aq) + H 2(g)
    9·2 answers
  • PLEASE HELP ASAP!!!!!!!!
    13·1 answer
  • True or false: A skeleton equation in chemistry shows the relative amounts of all materials in the reaction
    14·1 answer
  • Sort the metric system prefixes into the correct order, smallest to largest.
    15·2 answers
  • What are the tiny green structures that plants use to make their own food?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!