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
ss7ja [257]
3 years ago
6

How many molecules of nitrogen dioxide are in 1.28 g of nitrogen dioxide?

Chemistry
2 answers:
Kryger [21]3 years ago
5 0
In order to determine the number of molecules of nitrogen dioxide that are in 1.28 g of nitrogen dioxide, we first need to know these values:

Molar mass of nitrogen dioxide = 46.0055 g/mol
Avogadro's number = 6.022 x 10^23 molecules/mol

Then, we divide 1.28 g by the molar mass and multiply the resulting value to Avogadro's number:

1.28 g/ 46.0055 g/mol x 6.022 x 10^23 molecules/mol = 1.6755 x 10^22 molecules of nitrogen dioxide
puteri [66]3 years ago
3 0

Hello! 

How many molecules of nitrogen dioxide are in 1.28 g of nitrogen dioxide?

Let's first find the molecular mass of nitrogen dioxide, knowing that by Avogadro's Law for each mole of a substance we have 6.02 * 10²³ molecules.

N = 1*14 = 14 amu

O = 2*16 = 32 amu

---------------------------

molecular mass of nitrogen dioxide = 14 + 32 = 46 g/mol

How many molecules of nitrogen dioxide are in 1.28 g of nitrogen dioxide NO2?

46 g ---------------- 6.02*10²³ molecules

1.28 g -------------  y molecules

46*y = 1.28*6.02*10^{23}

46y = 7.7056*10^{23}

y = \dfrac{7.7056}{46}*10^{23}

y = 0.167513043*10^{23}

\boxed{\boxed{y \approx 1.675*10^{22}\:molecules\:of\:nitrogen\:dioxide}}\end{array}}\qquad\checkmark

________________________

I Hope this helps, greetings ... Dexteright02! =)

You might be interested in
What term is given to a substance that can dissolve in a particular liquid?
Elis [28]

Question options:

1. Insoluble

2. Soluble

3. Solvable

Answer:

Soluble

Explanation:

The solubility is a chemical property referring to the ability of the solute to dissolve in a solvent and form a homogeneous mixture (solution). It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium.

<u>Therefore, a substance is soluble in a particular liquid if it is able to dissolve in a solvent.</u>

3 0
3 years ago
The image shows the formation of a fault-block mountain.
marissa [1.9K]

1. Two parallel normal faults form.

4. The hanging wall on the left slides down relative to the footwall.

5. The hanging wall on the right slides down relative to the footwall.

7 0
3 years ago
Read 2 more answers
Is the cyanide ion a strong or weak base?
11111nata11111 [884]
It's a weak base bacause H C N is weak
4 0
2 years ago
How many electrons are in the nucleus of an atom with an atomic number of 7?!!
zzz [600]
There are two electrons
7 0
3 years ago
What is true of a gas
velikii [3]

Answer:

did you have options, cause if you did chose something alond the lines of

Explanation:

A real gas is a gas that does not behave as an ideal gas due to interactions between gas molecules. A real gas is also known as a nonideal gas because the behavior of a real gas in only approximated by the ideal gas law.

3 0
2 years ago
Other questions:
  • A 250mL sample of air at STP contains approximately 52.5mL of O2. What is the percentage of oxygen in the air
    6·1 answer
  • To complete the following chemical equation, what coefficients must be added? _____ Ca(OH)2 + _____ H3PO3 yields _____ Ca3 (PO3)
    8·1 answer
  • Where does energy go after it has been used?
    11·1 answer
  • What is the Electronegativity difference of F and CI
    7·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST
    6·2 answers
  • Acid base reaction is called nuetralization reaction why?​
    5·2 answers
  • The diagram below represents a beaker of water being heated by a flame. The arrows represent heat
    14·1 answer
  • Sn + 2HCI --&gt; SnCl2 + Hz
    8·1 answer
  • How many grams of Mg0 are produced from 9.7g of MG
    8·1 answer
  • How many moles of a gas are contained in 2.085 L at STP?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!