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
QveST [7]
2 years ago
9

Liquid nitrogen has a density of 0.808 g/mL and boils at 77 K. Researchers often purchase liquid nitrogen in insulated 195-L tan

ks. The liquid vaporizes quickly to gaseous nitrogen (which has a density of 1.15 g/L at room temperature and atmospheric pressure) when the liquid is removed from the tank. Suppose that all 195 L of liquid nitrogen in a tank accidentally vaporized in a lab that measured 10.00 m× 10.00 m× 2.50 m.What maximum fraction of the air in the room could be displaced bythe gaseous nitrogen?
Chemistry
1 answer:
Reika [66]2 years ago
7 0

Answer:

The nswer to the question is

The maximum fraction of the air in the room that could be displaced by the gaseous nitrogen is 0.548 or 54.8 %

Explanation:

To solve the question we note that

The density of the liquid nitrogen = 0.808g/mL and the volume is 195 L tank (vaporised)

Therefore since density = mass/volume we have

mass = Density × volume = 0.808 g/mL × 195 L × 1000 ml/L =157560 g

In gaseous form the liquid nitrogen density =1.15 g/L

That is density = mass/volume and volume = mass/density = 157560 g/(1.15g/L)  or

volume = 137008.69565 L

The dimension of the room = 10 m × 10 m × 2.5 m = 250 m³ and

1 m³ is equivalent to 1000 L, therefore 250 m³ = 250 m³  × 1000 L/m³ = 250000L

Therefore fraction of the volume occupied by the gaseous nitrogen =

137008.69565 L/250000 L = 0.548

Therefore the gaseous nitrogen occpies 54.8% of the room

You might be interested in
Determine whether each statement is a description of a physical property or a chemical property. Please check the box that appli
aleksklad [387]
Conductivity is a physical property

Odor is also a physical property
7 0
3 years ago
How many moles of electrons are transferred when 2.0 moles of aluminum metal react with excess copper(II) nitrate in aqueous sol
mojhsa [17]

Moles of electrons:

The moles of electrons that are transferred are 12F

A balanced equation:

2 moles of Aluminium metal react with excess copper(II) nitrate.

2Al + 3Cu{(NO_3)}_2  \rightarrow 2Al{(NO_3)}_3 +3 Cu

Given:

Moles of Aluminium = 2

As Aluminium goes from 0 to +3 oxidation state

Al \rightarrow Al^{3+} + 3e^-

And copper goes from +2 to 0

Cu^{2+} + 2e^-\rightarrow Cu

On balancing the number of electrons we get:

For 1 mole of Al 6e^- is required.

Therefore for 2 moles of Al,

Total (2\times6)F mole of electrons

Where F= Faraday's constant= 96500 C

So, 12F moles of electrons are transferred.

Learn more about Faraday's Law here,

brainly.com/question/27985929

#SPJ4

4 0
1 year ago
Identifying map types
Darina [25.2K]

Answer:

Political Map. A political map shows the state and national boundaries of a place. ...

Explanation:

3 0
2 years ago
A reaction that breaks large molecules into smaller ones by the addition of water is called a(n):
Luda [366]
Answer:  "condensation reaction" .
__________________________________________________
5 0
3 years ago
Which statement is the best example of pseudoscience?
pentagon [3]
Mary thinking her astrological sign, Leo, is a perfect fit for her personality is a belief in pseudoscience because there is not scientific evidence confirming such beliefs.
The answer is the second option.
8 0
3 years ago
Read 2 more answers
Other questions:
  • What noise does hydrogen gas make when ignited
    8·2 answers
  • M = 50 kg
    7·1 answer
  • The elements that lack the most properties of metals are called
    7·1 answer
  • The speed of light in a vacuum is constant. If the frequency of a light wave increases, what happens to the wavelength of the li
    8·1 answer
  • A student determines the aluminum content of a solution by first precipitating it as aluminum hydroxide, and then decomposing th
    10·1 answer
  • If 15 grams of Carbon dioxide is produced in a chemical reaction, how many grams of Carbon must be consumed in the reaction if w
    15·1 answer
  • The finches that Darwin studied in the Galapagos islands have evolved with different types of beaks: drilling, cracking, tearing
    5·2 answers
  • For the readion 2Na + Ch> 2NaCl, how many grams of Ch are required to read completely with 450 g Na
    14·1 answer
  • Iron + --> iron sulphate + copper What is missing ? Iron sulphate Copper sulphate Copper oxideIron oxide
    14·1 answer
  • How is energy transferred and transformed
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!