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
olya-2409 [2.1K]
3 years ago
6

How many moles of propane (C3H8) are in a 7.00-L tank at 20.0°C and 5.45 atm of pressure?

Chemistry
1 answer:
Eddi Din [679]3 years ago
7 0
By the claperyron equation<span>:

T = 20.0ºC + 273.15 => 293.15 K

R = 0.082 atm

Therefore:

P x V = n x R x T

5.45 x 7.00 = n x 0.082 x 293.15 

38.15 = n x 24.0383

n = 38.15 / 24.0383

n = 1.587 moles of C3H8


</span>
You might be interested in
PLEASE HELP ASAP ONLY HAVE 10 MINUTES. A certain photon of light has a wavelength of 422 x 10 -9 m. What is the frequency of the
Sedaia [141]

Answer:

7.11 x 10^{14} Hz

Explanation:

The equation for converting wavelength to frequency is ν=c/λ, or the speed of light over wavelength. The speed of light is 3.00 x 10^{8}, and our wavelength here is 422 x 10^{-9}. All we have to do now is substitute our given values:

\frac{3.00x10^{8} }{422x10^{-9}}

After reduction, our answer comes out to be about 7.11 x 10^{14} Hz.

4 0
3 years ago
EXTRACTION OF CAFFEINE 1.Explain the reason each step of the separation is performed with three portions of the solvent rather t
marissa [1.9K]

Answer:

Throughout the explanations section below you will find a description of the question.

Explanation:

(1)

  • Whether a solution would be positioned inside a separative funnel, combined water, as well as solvent, disintegrate particulate caffeine. In every stage, the caffeine content incorporated relies upon the coefficient of caffeine partitioning throughout the combination of water as well as fluid.
  • Thus, increasingly caffeine is taken from the solvent whenever the moment you bring additional solvent. Consequently, we separate the solvent from the single component.

(2)

  • For compounds to be mixed thoroughly and separated into different layers, a shuddering mixture within the dividing funnel would be essential.
  • However, it vibrates the separation funnel forcefully, restricts airflow within the funnel, which can also induce the fluid under it to burst or causing fluid to fire.
3 0
3 years ago
Read the following chemical equation.
Anton [14]

Answer:

Bromine gains an electron

Explanation:

According to oxidation and reduction

8 0
3 years ago
Read 2 more answers
1. When frequency increases energy:
liraira [26]
B

When frequency increases, as does the energy, but wavelength decreases. It also works vise versa; if wavelength were to increase, its frequency and energy will decrease.
8 0
3 years ago
Why steam distillation is usefull for thermally un stable compounds​
g100num [7]

The advantage of steam distillation over simple distillation is that the lower boiling point reduces decomposition of temperature -sensitive compounds.

4 0
4 years ago
Other questions:
  • Two elements in the second transition series (y through cd ) have three unpaired electrons in their 3+ ions. what elements fit t
    5·2 answers
  • Which of the following has the longest life a dwarf star a giant star a supernova or the sun.
    9·1 answer
  • Lol nevermind i figured it out
    8·1 answer
  • A researcher claims that increasing temperature by 10 degrees will double the rate of an enzyme-catalyzed reaction. To test this
    10·1 answer
  • As the given number of neutrons in the nucleus of a given atom of an element increases, the atomic number of that element
    11·2 answers
  • Atorvastatin is sold under the trade name Lipitor and is used for lowering cholesterol. Annual global sales of this compound exc
    6·1 answer
  • Robert Hooke was the first scientist to give the cell a name. Which statement is true about him?
    6·2 answers
  • How many moles of PCl5 can be produced from 53.0 g of Cl2 (and excess P4)?
    14·1 answer
  • Will mark brainlist need help
    6·1 answer
  • Which statement illustrates the difference between a chemical reaction and a nuclear reaction?A nuclear reaction releases more e
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!