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
zhannawk [14.2K]
3 years ago
14

What is the total number of nitrogen atoms in 0.25 mole of no2 gas?

Chemistry
2 answers:
Lapatulllka [165]3 years ago
7 0
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles.

0.25 mol NO2 (1 mol N/ 1 NO2) ( 6.022 x 10^23 atoms / mol ) = 1.5055x10^23 atoms</span>
Savatey [412]3 years ago
3 0

Answer:

1.5*10^23 atoms

Explanation:

What is the total number of nitrogen atoms in 0.25 mole of no2 gas?

mole is the amount of a substance. Its is calculated as mass of a substance over molecular mass(g/mol).

it contains 1 avogadro constant

1 mol=6.02*10^23 avogadros constant

0.25mol=x

so cross and multiply to get the value of x

6.022140857( 74 ) × 10 ^23

0.25*6.022*10^23

nitrogen atoms in such a molar quantity of nitric oxide,

1.5*10^23 atoms

You might be interested in
A balloon is filled with 12 L of air at a pressure of 2 atm. What is the volume of the balloon if the pressure is changed to 3 a
mihalych1998 [28]

Answer:

8L

Explanation:

Using Boyle's law which states that the volume of a given mass of gas is inversely proportional to the pressure, provided temperature remains constant

P1V1= P2V2

P1 =  2atm, V1 = 12L ,

P2 = 3atm , V2 =

12 × 2 = V2 × 3

Divide both sides by 3

V2 = 24 ÷ 3

V2 = 8L

I hope this was helpful, please mark as brainliest

3 0
3 years ago
What does the poitof incidence mean?​
Lemur [1.5K]

Answer:

Point of incidence: The point on the surface where the incident ray strikes the surface is called the point of incidence. Reflected ray: The ray of light that bounces back from the surface of an object is called a reflected ray of light.

Explanation:

Search

4 0
3 years ago
Which can occur during a physical change? (Select all that apply.)
koban [17]

Answer:

the shape of a piece of matter can change

7 0
3 years ago
Which need, want value, or interest was most likely involved in the
____ [38]
For this question the answer is c
8 0
3 years ago
Read 2 more answers
2c+02=2CO2. The moles of co2 produced when 0.25 moles of O2 react is?​
Sophie [7]
<h3>Answer:</h3>

\displaystyle 0.5 \ mol \ CO_2

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Moles
  • Compounds

<u>Stoichiometry</u>

  • Using Dimensional Analysis
  • Analyzing Reactions RxN
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 2C + O₂ → 2CO₂

[Given] 0.25 moles O₂

[Solve] moles CO₂

<u>Step 2: Identify Conversions</u>

[RxN] 1 mol O₂ → 2 mol CO₂

<u>Step 3: Stoichiometry</u>

  1. [DA] Set up:                                                                                                     \displaystyle 0.25 \ moles \ O_2(\frac{2 \ mol \ CO_2}{1 \ mol \ O_2})
  2. [DA] Multiply/Divide [Cancel out units]:                                                        \displaystyle 0.5 \ mol \ CO_2
7 0
2 years ago
Other questions:
  • PLEASE HELP ME!!!!!!!!!!!!!!!!!!
    5·2 answers
  • A 12.8 g piece of aluminum (which has a molar heat capacity of 24.03 j/°c·mol) is heated to 82.4°c and dropped into a calorimete
    13·1 answer
  • It takes 26.8 mL of a 0.0700 M NaOH standard solution to neutralize a 250 mL sample of lactic acid (C3H6O3). What mass of lactic
    14·1 answer
  • Will carbon and hydrogen atoms most likely form an ionic bond or a covalent bond?
    6·2 answers
  • Which of the following is not evidence of a chemical change?
    9·1 answer
  • In the chemical reaction, mg + 2hcl mgcl2 + h2 how many moles of hcl are needed to completely react with 3.5 moles of mg?
    11·1 answer
  • Where does the stonefish hide
    9·2 answers
  • Is oxygen a necessary reactant for oxidation reaction ​
    13·1 answer
  • 1. What is oxidation? * O a. it is loss of electrons O b. it is gain of electrons O c. it is loss of protons O d. none of the ab
    8·1 answer
  • How much would a 2 ton touch weigh on moon
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!