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
Mama L [17]
3 years ago
8

If air is 80 percent nitrogen and 20 percent oxygen by volume what is density

Chemistry
1 answer:
Evgen [1.6K]3 years ago
5 0
1 mol of any gas or mix of gases at STP conditions will have a volume of 22.4 L. Since the problem doesn’t said what are the conditions I will asume that are STP condition and the volume of one mole of the mix will have a volume of 22.4 L.

You may know that density is
D=m/v

In one mole of air I will have 80% of Nitrogen (N2) and 20% oxygen (O2).

So the mass of one mole of air will be

14 x2x0.80+16x2x0.20 = 22.4 g + 6.4 g = 28.8 g

D= 28.8/22.4 = 1.28 g/L

Of course if the temperature is higher the density will be smaller because the volume of one mole will be bigger and viceversa if the temperature decrease. Also if the pressure is different than one atm the volume of a mol will change.
You might be interested in
A monatomic ideal gas at a pressure of 1.00 atm expands adiabatically from an initial volume of 1.50 m3 to a final volume of 4.0
tamaranim1 [39]

The correct answer is 1atm.

<h3>What is Kinetic theory of gases?</h3>

A lot of the fundamental ideas of thermodynamics were established with the help of the kinetic theory of gases, a straightforward yet historically significant classical model of the thermodynamic behaviour of gases. According to the model, a gas is made up of numerous identical submicroscopic particles (atoms or molecules) that are all moving rapidly and randomly. It is considered that they are substantially smaller in size than the particle spacing on average. Random elastic collisions between the particles and with the container's walls occur between the particles. The simplest form of the model only takes into account the interactions within the ideal gas.

learn more about Kinetic theory of gases refer:

brainly.com/question/3924326

#SPJ4

7 0
1 year ago
Which development was a direct result of the
gladu [14]
"(2) increase in suburbanization" was a direct result of the <span>baby boom that followed World War II, but of course there were other factors that resulted as well. </span>
3 0
3 years ago
If an atom has an atomic mass of 16 and it has 8 neutrons what is it's atomic number
Lana71 [14]
The atomic number is 8.
7 0
2 years ago
Identify the species that was reduced in the titration reaction. Justify answer in terms of oxidation number 6h+(aq)+2mno4−(aq)+
egoroff_w [7]

Answer:

Explanation:

Reaction given

6 H⁺ + 2 MnO₄⁻ + 5 (COOH)₂ = 10CO₂ +8H₂O + 2 Mn⁺²

Oxidation number of Mn in MnO₄⁻

=  x - 4 x 2 = -1

x = 8 -1

+ 7

Oxidation no of Mn in Mn⁺² =  +2

So its oxidation no is decreased from + 7 to + 2  . Hence it is reduced.

5 0
3 years ago
What are some uses of metals?
VashaNatasha [74]
They are used to make plane bodies.
Some are used for electrical wires eg copper because they are good conductors of electricity.
Used in building materials.
used to make jewelry eg gold and silver<span />
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is similar among all living organisms on Earth?
    5·1 answer
  • Which substance is not capable of acting as an arrhenius acid in aqueous solution
    8·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST
    6·2 answers
  • ) The only noble gas without eight valence electrons is __________. A) Ar B) Ne C) Kr D) He E) All noble gases have eight valenc
    13·1 answer
  • What is the difference between acidic and basic solutions in working with
    5·1 answer
  • A student analyzed an unknown sample that contained a single anion. The sample gave a yellow precipitated upon addition of a sol
    7·1 answer
  • How does a buffer work?
    14·1 answer
  • Please help on my test
    9·1 answer
  • If you have 1.5 grams of silver nitrate, how many grams of silver could<br> you produce?
    15·1 answer
  • What is chemical compounds?​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!