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
My name is Ann [436]
3 years ago
9

How many moles are contained in a 4.67-l sample of gas at 30°c and 199 kpa?

Chemistry
2 answers:
dezoksy [38]3 years ago
8 0

Answer is: 0.37 moles are contained.

p = 199 kPa; pressure of the gas.

T = 30°C = 303.15 K; temperature of the gas.

V = 4.67 L; volume of the gas.

R = 8.314 J/K·mol; gas constant..

Use ideal gas law: p·V = n·R·T.

n = p · V ÷ (R · T).

n = 199 kPa · 4.67 L ÷ (8.314 J/K· mol · 303.15 K).

n = 0.37 mol; amount of the gas.

ohaa [14]3 years ago
4 0
Pv=nRT
where,p=199, R(constant)=8.314, V=4.67 T=30C=293K
n=pv/RT=0.38 moles
You might be interested in
Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo?
siniylev [52]

answer:

c. volcanic activity

3 0
3 years ago
R equals The formula for Ohm's law can be written: R equals _____. I / V V / I I x V
Licemer1 [7]

Answer:

R = V / I

Explanation:

Ohm's Law:

V = I * R , V = voltage , I = current , R = resistance

rearranging to solve R,

R = V / I

4 0
2 years ago
Define saturated and unsaturated fats​
Sphinxa [80]

Answer:

<h3><u>Saturated and unsaturated</u>:-</h3>

Are a form of fat in which all or most of the fatty acid chains are single bonds. Glycerol and fatty acids are the two types of smaller molecules that make up fat.

<h3><u>Saturated fat is found in:</u></h3>
  • cakes
  • sausages
  • cheese
  • butter
<h3><u>Examples of unsaturated fats:- </u></h3>
  • Olive
  • Nuts(almonds, hazelnuts)
  • Seeds(pumpkin and sesame seeds)

hope it helps...

6 0
3 years ago
(there are 2 quetions) how is heat being transfered in:
alekssr [168]

Answer:

  1. Heat energy is transferred from homes by conduction through the walls, floor, roof and windows. It is also transferred from homes by convection. For example, cold air can enter the house through gaps in doors and windows, and convection currents can transfer heat energy in the loft to the roof tiles.
  2. Convection is the heat transfer due to the movement of a fluid, such as a gas or liquid, and carries heat energy away from the source of heat. When a substance is heated, it causes its particles to vibrate more. The more vibration, the more space they will take up and the less dense they will become.

I really hope it helps! ❤

7 0
3 years ago
Read 2 more answers
The atomic number of an atom is always equal to the number of its what ??
Marianna [84]
The answer is protons and electrons! Hope this helps :D
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these is NOT a physical change?
    6·1 answer
  • How does the Law of Conservation of Mass relate to changes in physical state? How does it relate to chemical changes?
    12·1 answer
  • during her science fair project, mary discovered that solutions of ionic compounds in water conduct electricity. What type of in
    10·1 answer
  • What is a demonstration of the law of conservation of mass​
    13·1 answer
  • explain why the offsrping with Gg genes for pod color look the same as a pea plant with GG genes for pod color
    11·1 answer
  • Nuclear changes differ from normal chemical changes in that all nuclear changes
    15·1 answer
  • What is a displacement reaction
    7·2 answers
  • Which is not an example of a
    6·1 answer
  • Why is more dew formed on a grass and not on polished metal surface​
    9·1 answer
  • Metal objects, such as knifes or bullets, that come into contact with bones can leave trace evidence on them.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!