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
Katen [24]
3 years ago
5

How many molecules of n2 are in a 200.0 ml container at 780 mmhg and 135∘c?

Chemistry
1 answer:
Neporo4naja [7]3 years ago
8 0
By  use  of  ideal  gas  equation   PV=  nRT     where  n  is  the  number  of  moles,P =  pressure, V   =  volume,  R=  gas  constant  (0.08206 L. atm/ mol.k)     ant  T  is  the  temperature,  

to  calculate  the  number  of  moles(n) =PV/RT

convert  ml  to L,  that  is  200/1000= 0.2  L

convert  mmHg  to  atm,  that  is  780mm hg  x  1atm/  760  mm  hg=  1.026  atm

convert  temperature  to   kelvin,  that  is 135  +273=  408  k
n  is  therefore=  (0.2  x   1.026)/ ( 0.08206  x   408)=  6.129  x10^-3   moles

from  avogadro  constant    1moles  =  6.02  x10^23  molecules   what  about  6 .129  x10^-3  moles

= ( 6.02  x10^23)  x (6.129 x10^-3)/  1mole =  3.69  x10^21  molecules
You might be interested in
Students are designing an experiment to test the law of conservation of mass using the following materials: 10 g baking soda, 30
GaryK [48]

Answer:

1. Students need to measure masses of the items.

2. Put baking soda and vinegar in a plastic bag and close it.

3. Mix the two, allowing for a reaction to occur.

4. Figure the mass of the plastic bag while the two components are inside.

5. The combined mass should be equal to what each weighed on their own.

Explanation:

6 0
3 years ago
What is the difference between energy levels, sub levels, and orbitals?
Lorico [155]

Explanation:

Orbitals are spaces that have a high probability of containing an electron. ... The s sublevel has just one orbital, so can contain 2 electrons max. The p sublevel has 3 orbitals, so can contain 6 electrons max. The d sublevel has 5 orbitals, so can contain 10 electrons max.

7 0
3 years ago
Read 2 more answers
What is the frequency of a wave traveling west with a velocity of 414 meters per second and a wavelength of 1.8 meters? hertz
LuckyWell [14K]

Answer:

230hz

Explanation:

Hello,

To solve this question, we gave to use the relationship between velocity-frequency-wavelength to find the frequency in this question.

V = Fλ

V = velocity or speed of the wave

F = frequency of the wave

λ = wavelength of the wave

Data;

V = 414m/s

λ = 1.8m

f = ?

V = fλ

f = v/λ

f = 414/1.8

f = 230hz

The frequency of the wave is 230hz

7 0
3 years ago
If you refuse a legal chemical test issued by a law enforcement officer, the Division of Motor Vehicles is required to:
Andru [333]

Answer: Revoke the driver's license for at least 12 months

Explanation:

Chemical tests are used in order to measure the amount of drugs or alcohol that is in the body of a person when the person was arrested. To do this, samples of the urine or blood of the person can be taken and the result will be used to know if the person was driving under the influence of alcohol or not.

If the person refuse a legal chemical test issued by a law enforcement officer, the Division of Motor Vehicles is required to revoke the the driver's license of the person for at least 12 months.

6 0
2 years ago
How many grams of fluorine are needed to generate 7.65 moles Carbon Tetrafluoride
Delicious77 [7]

Answer:

36.3375 g

Explanation:

7 0
2 years ago
Other questions:
  • The dimensions of a cuboid shape cupboard are 1.31 m wide by 0.9 m long by 1.70 m tall what is the volume of the cupboard taking
    11·1 answer
  • The half-life of radium-226 is 1600 years. How many grams of a 0.25 g sample will remain after 4800 years?
    13·1 answer
  • Which statement best describes how a salmon's tail fin helps it to survive?
    13·1 answer
  • What is formed when two Bromine atoms bond together?
    10·1 answer
  • How many moles of nitrogen gas are there in 6.8 liters at room temperature and pressure (293 K and 100 kPa)?
    5·1 answer
  • How is the temperature of the earth partly controlled by carbon?
    15·1 answer
  • 15 PTS! HELP! Carbon dioxide dissolves in water to form carbonic acid, H2CO3. Show how this substance fits both the
    15·1 answer
  • What is the mass, in grams, of 1.33 mol of water, H2O? Express the mass in grams to three significant figures.
    14·2 answers
  • NEED ASAP!
    10·1 answer
  • Un recipiente cerrado, de 4,25 L, con tapa móvil, contiene H2S(g) a 740 Torr y 50,0°C. Se introduce en ese recipiente N2(g) a te
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!