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
True [87]
3 years ago
5

How many moles of a gas sample are in a 10.0 L container at 298 K and 203 kPa? (Use the ideal gas law PV = nRT with R = 8.31 L-k

Pa/mol-K).
Chemistry
1 answer:
weeeeeb [17]3 years ago
8 0
Ideal gas law: PV = nRT

P-pressure
V-volume
n-number of moles(m/M)
R-constant
T- temperature

State given info:
V=10L
T=298k
P=203kPa
R=8.31(only for kPa, for pressure at atm use 0.08206)

Sub in:
(203kPa)(10L)=n(8.31)(298)

Rearrange:
n= (203)(10) / (8.31)(298)
n = 0.819745mol in gas sample
You might be interested in
What is the contrast of these two atoms?
Katena32 [7]

Answer:

The atomic number of silicon is 14 while atomic mass of carbon is 14.

Explanation:

An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.

In given atoms ¹⁴₆C  and ²⁸₁₄Si the atomic mass of carbon is 14 while the atomic number of silicon is 14. It means silicon has 14 electrons or protons while carbon has 6 protons or electrons because its atomic number is 6. Carbon has 6 protons and 8 neutrons in its nucleus while silicon has 14 protons and 14 neutrons in its nucleus.

In C:

Number of neutrons + protons = 8 + 6 = 14 amu (mass number)

Number of electrons = 6

In Si:

Number of neutrons + protons = 14 + 14 = 28 amu (mass number)

Number of electrons = 14

6 0
3 years ago
Positrons are spontaneously emitted from the nuclei of
Leto [7]
Positrons are spontaneously emitted from the nuclei of potassium -37.
4 0
3 years ago
Read 2 more answers
Did diagram shows embryo development of four different animals. How is this evidence used to suggest that life changes over time
wel
It suggests that life changes over time by showing different animals at different stages in their life, also giving more than one example on how they can change during early development and throughout their lives
5 0
3 years ago
Read 2 more answers
Solar energy converts ___ into either ___ energy or electrical energy.
IceJOKER [234]

Answer:

Hey mate....

Explanation:

This is ur answer.....

<h2>Solar radiation can be converted either into thermal energy (heat) or into electrical energy.</h2>

Hope it helps!

mark me brainliest plz......

Follow me! :)

4 0
2 years ago
Read 2 more answers
How many places are there electrons in the innermost shell of an atom
Sergio [31]
There are two places for electrons in the inner most shell
5 0
3 years ago
Other questions:
  • (a) How much negative charge is on each oxygen of the carbonate ion?
    5·1 answer
  • Which two particles are found in the nucleus of an atom?
    5·2 answers
  • How do water molecules behave?
    7·1 answer
  • An open-tube manometer is used to measure the pressure in flask. The atmospheric pressure is 756 torr and the Hg column is 10.5
    5·1 answer
  • Which of the following statements about FUSION is correct?
    9·2 answers
  • Select the correct answer.
    14·1 answer
  • How does a lightning rod protect a<br> building from lightning damage?
    12·2 answers
  • A4 g sugar cube (Sucrose : C 12 H 22 O 11 ) is dissolved in a 350 ml teacup of 80 C water. What is the percent composition by ma
    11·1 answer
  • What objects in the solar system are larger
    9·1 answer
  • Based on the passage, which words best describe Captain Ahab?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!