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
Two different atoms have four protons each and the same mass. However, one has a positive charge while the other is neutral. Des
seraphim [82]

The possible number and location of all subatomic are one of them is electrically neutral, while the other has a stable electronic configuration.

<h3>What are subatomic particles?</h3>

Subatomic particles are those particles that are present inside the atoms. They are electron, neutron, and proton. They are charged particles, protons are positively charged, electrons are negatively charged and neutrons are neutral.

The protons and electrons totally contribute to the atomic mass of the elements.

Thus, the subatomic particles are electrically neutral and stable to electronic configurations.

To learn more about subatomic particles, refer to the below link:

brainly.com/question/13303285

#SPJ1

8 0
1 year ago
What is the only thing that changes in a chemical reaction
kirill [66]
Bbbbbbbbbbbbbbbbbbbbb
3 0
3 years ago
Which block on the periodic table contains the actinide series of elements?
viktelen [127]
F BLOCK is the block on the period table that contains the actinide series of elements.

Actinide series of elements are two rows under the periodic table which include Lanthanide series and Actinide series. These are all radioactive elements and all of these are not not found in nature. All these are included in F block element.
4 0
3 years ago
The gravitational force of Earth is causing volcanoes on the moon.
yan [13]
This is true, the force can bring land up at ease
7 0
3 years ago
How do I find the slope of this graph?​ Is it even possible?
nasty-shy [4]

Answer:

Not exactly But you can take the slope of the curved portion and the slope of the flatline.

It wont do you much good since your working for absorbance but if you ever see something like a temperature change you can use the slope(s) to find freezing points/melting

Explanation:

If you need to submit a slope you could use a best fit which is just point to point or you could break it up like i mentioned

4 0
2 years ago
Other questions:
  • Matt's cube, after 5 trials, had an average density of 7.40 g/cm3 . His group's cube was made of
    11·2 answers
  • What is the mass of a neutron?
    13·2 answers
  • Hydrogen gas can be produced by reacting aluminum with sulfuric acid. how many moles of sulfuric acid are needed to completely r
    13·2 answers
  • What is an endothermic reaction?
    14·1 answer
  • Phytoplankton are microscopic photosynthesizing organisms that typically live in the upper layers of the ocean. What trophic lev
    14·1 answer
  • 1. How many ATOMS of boron are present in 2.20 moles of boron trifluoride ? atoms of boron.
    7·1 answer
  • Which phase do the chromosomes line up in the middle
    9·2 answers
  • How many grams of sodium metal must be introduced to water to produce 3.3 grams of hydrogen gas?
    5·1 answer
  • Copper(II) carbonate undergoes thermal decomposition. One of the pro
    11·1 answer
  • A 1.5 L sample of gas was collected at a pressure of 1.8 atm. What volume will the gas have if the pressure is reduced to 1.0 at
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!