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
swat32
4 years ago
12

HELP WORTH 20 points if Awnser is correct

Chemistry
1 answer:
Klio2033 [76]4 years ago
7 0

.3999 moles

The ideal gas law: PV = nRT

155 degrees Celsius = 428 Kelvins  

n = PV/RT

n = 2.80 atm x 5.00 L/0.0821 (gas constant) x 428 K

= 0.398 moles

You might be interested in
How does resource extraction affect local and national economies?
saw5 [17]

Answer:

The direct channels by which extraction can affect the economy are of particular interest. The development of mines or oil and gas fields can result in significant shocks to a regional economy, generating jobs and drawing in capital from other regions and countries.

Explanation:

6 0
3 years ago
give the chemical composition of the followings : Name Chemical Composition Coal gas Water gas Producer gas Natural gas
Assoli18 [71]

Answer:

Below.

Explanation:

Coal gas is a mixture of a variety of gases: inflammable gases including, hydrogen, methane, ethylene, carbon monoxide and volatile hydrocarbons and small amounts of non flammable gases like nitrogen and carbon dioxide.

Water gas consists mainly of carbon monoxide and hydrogen.

Producer gas is similar to water gas and consists mainly of carbon monoxide and hydrogen together with nitrogen and carbon dioxide.

Natural gas occurs naturally and consists mainly of methane with small amounts of other hydrocarbon gases.

8 0
3 years ago
How does a physical change differ from a chemical change
inysia [295]

With a physical change you can actually see it change like ice turning into water, then with a chemical change you can't see it change, although within the molecules themselves they change which makes that possible.


Hope this helps!

6 0
3 years ago
Read 2 more answers
How many liters of carbon dioxide gas are in 18.6 moles of CO2 at STP?
PolarNik [594]

Answer:

416.876

Explanation:

Uhmm I am so so very sorry if this is incorrect

5 0
3 years ago
Which statement is true about oxidation and reduction in an electrochemical cell?
Mila [183]

Answer : The correct option is, (3) Oxidation occurs at the anode and reduction occurs at the cathode.

Explanation :

Electrochemical cell : It is a type of device which is used to convert the chemical energy into electrical energy during the redox reaction.

In the electrochemical cell, there are two electrodes. The electrode on which the oxidation takes place is called the anode (or negative pole) and the electrode on which the reduction takes place is called the cathode (or positive pole). This cell is connected by the salt bridge.

In the external circuit, the electrons flow from the anode (negative pole) to cathode (positive pole) through the voltmeter.

In the inner circuit, the ions flow through the salt bridge.

Hence, the correct option is, (3) Oxidation occurs at the anode and reduction occurs at the cathode.

7 0
4 years ago
Read 2 more answers
Other questions:
  • What istope of an atom if it has 29 protons and 36 neutrons?<br>​
    11·1 answer
  • which two conditions can limit the usefulness of the kinetic-molecular theory in describing gas behavior
    15·1 answer
  • Nucleosynthesis began when _____ and ended when _____
    9·1 answer
  • Two atoms have the electron configurations 1s2 2s2 sp6 and 1s2 2s2 2p6 3s1. The first ionization energy of one is 2080 kJ/mol an
    5·1 answer
  • Which scenario is an example of primary succession?
    6·1 answer
  • Please i need help ​
    11·1 answer
  • Is it possible for a diprotic acid to have Ka1?
    13·1 answer
  • How are changes in populations related to the availability of an ecosystem's resources?
    5·1 answer
  • Which of these common substances is a mixture?
    12·2 answers
  • Name the alkanes shown
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!