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
Julli [10]
2 years ago
12

A gas under a pressure of 9.86 kPa and at a temperature of 75°C occupies a 500.0L container. How many moles of gas are in the co

ntainer?​
Chemistry
1 answer:
Lady bird [3.3K]2 years ago
8 0

Answer:

1.7 mol

Explanation:

This is an ideal gas problem. So many units! That's the tip-off usually.

PV=nRT

First convert kPA to atm 1 atm=101.3 kPA so 9.86/101.3 = .097311 atm

(.097311 atm x 500L) = n · 0821 L·atm/mol·K · 348K

Do your multiplication then divide to get n alone and you should get 1.7 mol

You might be interested in
Radioactive cobalt-60 is frequently used in treating cancer. It took 24 years for a 10 gram sample to decay to 0.625 grams. What
-BARSIC- [3]

Answer:

Half life is 6 years.

Explanation:

T½ = In2 / λ

Where λ = decay constant.

But N = No * e^-λt

Where N = final mass after a certain period of time

No = initial mass

T = time

N = 0.625g

No = 10g

t = 24 years

N = No* e^-λt

N / No = e^-λt

λ = -( 1 / t) In N / No (inverse of e is In. Check logarithmic rules)

λ = -(1 / 24) * In (0.625/10)

λ = -0.04167 * In(0.0625)

λ = -0.04167 * (-2.77)

λ = 0.1154

T½ = In2 / λ

T½ = 0.693 / 0.1154

T½ = 6.00 years.

The half life of radioactive cobalt-60 is 6 years

5 0
3 years ago
In the simple cubic unit cell, the centers of ____________ identical particles define the ____________ of a cube. The particles
vodka [1.7K]

Answer:

in the simple cubic unit cell, the centers of ____Eight________ identical particles define the ____corners________ of a cube. The particles do touch along the cube's _____edges _______ but do not touch along the cube's ___ diagonally_________ or through the center. There is/are __eight__________ particle per unit cell and the coordination number is _____six_______ .

6 0
3 years ago
In one of your classes, you were asked to start a program that would help the government in environmental conservation,
kirill [66]
The answer is C

Because using crocodile skin won’t benefit the environment
5 0
3 years ago
10 moles of carbon dioxide has a mass of 440 g. What is the relative formula mass of carbon dioxide?
Ksenya-84 [330]

Answer: 44g

Explanation: The formular for finding Moles is ;

Moles =  Mass / Molar Mass or Formular Mass.

Base on this question; Moles = 10, Mass = 440g, and Formular Mass = ?

Making 'Formular Mass', subject of the formular; we thus have;

Formular mass = Mass / Moles = 440/ 10 = 44g

7 0
3 years ago
What is molarity and how is it calculated? If possible, please explain it to me detailed. Thank you :)​
Lyrx [107]

Molarity is a concentration unit, defined to be the number of moles of solute divided by the number of liters of solution.

4 0
3 years ago
Other questions:
  • Como se ordena la palabra ecrfinaine
    13·1 answer
  • Which conditions create a thunder storm? Select three responses.
    11·1 answer
  • Which reaction is used to produce polyethylene from ethylene
    13·1 answer
  • Turgor, an internal stimulus, refers to —
    7·1 answer
  • Which best describes the effect of J. J. Thomson’s discovery?
    14·1 answer
  • Which of the following is an example of organic matter salt water or air​
    10·1 answer
  • An example of an extensive property of matter is?<br>temp<br>pressure<br>mass<br>hardness
    9·1 answer
  • Can someone shorten these definitions?
    9·1 answer
  • Which type of molecule is made from nucleotides?
    9·1 answer
  • A 80.0 g sample of copper (specific heat = 0.20 J/g °C ) is heated and then added to 100 g water at 22.3 °C. The final temperatu
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!