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
Nadusha1986 [10]
3 years ago
15

Carbon dioxide makes up approximately 0.04% of Earth's atmosphere. If you collect a 2.9 L sample from the atmosphere at sea leve

l (1.00 atm) on a warm day (27 ∘C), how many CO2 molecules are in your sample?
Physics
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0

Answer:

number of molecules=  2.83 x 10^19

Explanation:

0.04 % means 0.04 L CO_2 in 100 L atmosphere

so for 2.9 L atmosphere CO2 vol = ( 0.04/100) x 2.9 = 0.00116

T = 27°C = 300 K , P = 1 atm ,

n = PV/RT = ( 1 x 0.00116) ÷ ( 0.08206x300) = 4.71×10^{-5}

number of molecules = 6.023 x 10^23 x 4.71×10^{-5}   = 2.83 x 10^19

You might be interested in
The free-body diagram below represents the force of several vehicles driving across a bridge. Assume that the bridge is in stati
krek1111 [17]

In order to calculate the unknown reaction force, we need to know that the sum of forces pointing down is equal the sum of the forces pointing up, so all forces will be in equilibrium.

So we have:

\begin{gathered} 17800+150000+13200=121000+x \\ 181000=121000+x \\ x=181000-121000 \\ x=60000 \end{gathered}

7 0
1 year ago
Only using 10 ohm resistors come up with a way to make a battery catch fire
Margaret [11]
They catch fire with the ohm with the light from the gas with the heat and gas from radiation elects from the chemicals mixed
6 0
3 years ago
The_______ of an object is given relative to an origin
Setler79 [48]
The slope of an object is given relative to an origin.
8 0
4 years ago
In a mixture what happens when the ingredients intermingled
Zinaida [17]
The ingredients do not react with or chemically bond to each other.
7 0
3 years ago
Read 2 more answers
Whenever you push an object across a frictional surface, it starts out taking a lot of force to push to get the object moving. H
son4ous [18]

Answer:

The answer is A

Explanation:

Here's an example. A child is in school taking a test. They have made a mistake on a question, and want to erase it. The eraser is made out of a type of rubber, the rubber has friction, which means the eraser has something that's going to resist movement. Now the child has exerted enough force to get it moving, and it's moving, it won't stop unless the child stops exerting force to keep it moving. Both Newton's 1st and 3rd law explain the action of moving something on a surface with friction.

5 0
3 years ago
Other questions:
  • A ball rolls of a cliff and when it lands has a vertical velocity 35 ms ^-1. how high was the cliff?
    12·1 answer
  • What is one way you can state how you feel?
    15·1 answer
  • A sphere of radius R has charge Q.The electric field strength at distance r > R is E intial. What is the ratio E of the final
    7·1 answer
  • Why are Mars and Europa the top targets for the study of astrobiology?
    6·1 answer
  • 4. Tires on the road show how friction produces
    10·2 answers
  • Ian walks 2 km to his best friend’s house, then walks 0.5 km to the library. He then makes a 2.5 km walk home. The entire walk t
    6·1 answer
  • White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because
    5·2 answers
  • The suns energy comes from which nuclear reaction?
    11·1 answer
  • A go-cart and rider have a mass of 14 kg. If the cart accelerates at 6m/s^2 during a 40 m sprint in 100 seconds, how much power
    5·1 answer
  • A force of 1 N is the only horizontal force exerted on a block, and the horizontal acceleration of the block is
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!