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
patriot [66]
3 years ago
12

At a certain temperature, a mixture of 2 gases, 11.2 g of oxygen and 104.75 of krypton exert a total pressure of 4.25 atm. What

is the partial pressure of each gas in mm Hg?
Chemistry
1 answer:
ki77a [65]3 years ago
4 0

Answer:

Pressure of O₂ = 0.93 atm

Pressure of krypton = 3.32 atm

Explanation:

This problem can be solved by using Dalton's Law of Partial Pressures, which states that the partial pressure of a component of a gaseous mixture depends on the mole ratio of said component and the total pressure of the gaseous mixture.

Pₐ = Xₐ * Ptotal

P ₐ  - the partial pressure of component  a  

χ ₐ   - its mole fraction in the mixture

P total  - the total pressure of the mixture

The moles of the two gases are:

moles of O₂ = 11.2/32 = 0.35 moles

moles of krypton = 104.75/83.8 = 1.25 moles

Total moles = 1.25 + 0.35 = 1.6 moles

Xₐ = number of moles of a /total moles in mixture

Pressure of O₂ = 0.35/1.6 *4.25 = 0.93 moles

Pressure of krypton = 1.25/1.6 *4.25 = 3.32 moles

You might be interested in
In what way are electrons quantized?
KiRa [710]

<u>Answer:</u> The correct option is A) They have fixed energy values.

<u>Explanation:</u>

Electron is one of the sub-atomic particle present around the nucleus of an atom which is negatively charged.

In an atomic model, it is assumed that the electron revolves around the nucleus in discrete orbits having fixed energy levels.

These electrons when jumping from one energy level to another, some amount of radiation is either emitted or absorbed.

These fixed energy levels are given by the Bohr model and thus, the electrons are quantized.

Hence, the correct option is A) They have fixed energy values.

6 0
3 years ago
Read 2 more answers
What is the wavelength of a photon with an energy of 3.50 x 10^-19 J ?
Leokris [45]

Answer:

λ = 5.68×10⁻⁷ m

Explanation:

Given data:

Energy of photon = 3.50 ×10⁻¹⁹ J

Wavelength of photon = ?

Solution:

E = hc/λ

h = planck's constant = 6.63×10⁻³⁴ Js

c = 3×10⁸ m/s

Now we will put the values in formula.

3.50 ×10⁻¹⁹ J =  6.63×10⁻³⁴ Js × 3×10⁸ m/s/ λ

λ =  6.63×10⁻³⁴ Js × 3×10⁸ m/s / 3.50 ×10⁻¹⁹ J

λ =  19.89×10⁻²⁶ J.m / 3.50 ×10⁻¹⁹ J

λ = 5.68×10⁻⁷ m

8 0
3 years ago
Describe the structure of a typical metal such as iron ?<br>assaaap
dimaraw [331]

Answer:

Metals consist of giant structures of atoms arranged in a regular pattern. The electrons from the outer shells of the metal atoms are delocalised , and are free to move through the whole structure. This sharing of delocalised electrons results in strong metallic bonding .

Explanation:

mark me as brainliest

8 0
3 years ago
Read 2 more answers
Substances which will glow in the dark after being exposed to sunlight are called:
nordsb [41]
It  is called phosphorescent substances. 
6 0
3 years ago
Read 2 more answers
CH4 and CO₂ are the chemical formulas for:
nadya68 [22]

Answer:

CH4 = Methane

CO2 = Carbon dioxide

<h3>Hope this Helps!!</h3><h3>Hope this Helps!!:)</h3>
6 0
3 years ago
Other questions:
  • How does the atmospheric pressure vary with height?
    6·2 answers
  • Define the "half-life" of a radioisotope
    7·1 answer
  • What is the electron structure of a beryllium ion with a net ionic charge of +2?
    15·2 answers
  • The maximum efficiency possible in an energy conversion process that is not limited by the second law of thermodynamics
    5·1 answer
  • Should someone who lives on the sixth floor of an apartment building be concerned about radon in his or her apartment? Why or wh
    11·1 answer
  • Warm air rises because of its
    9·2 answers
  • The molarity of a 4.200 L solution is 1.230 M Na2CO3. What is the mass of Na2CO3
    5·1 answer
  • What is the general trend for electronegativity
    14·1 answer
  • How many grams of Fe can be produced when 6.50 g of Fe2O3 reacts?
    6·1 answer
  • A 7.74 L balloon is filled with water at 3.88 atm. If the balloon is squeezed into a 0.23 L beaker and does NOT burst, what is t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!