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
max2010maxim [7]
3 years ago
15

To prevent air from interacting with highly reactive chemicals, noble gases are placed over the chemicals to act as inert “blank

eting” gases. A chemical engineer places a mixture of noble gases consisting of 5.50 g of He, 15.0 g of Ne, and 35.0 g of Kr in a piston-cylinder assembly at STP. Calculate the Partial Pressure per Gas​
Chemistry
1 answer:
Ronch [10]3 years ago
6 0

Explanation:

Given parameters:

Mass of He  = 5.5g

Mass of Ne  = 15g

Mass of Kr  = 35g

Pressure at STP = 1atm

Unknown:

Partial pressure per gas = ?

Solution:

Partial pressure is the pressure a gas would exert it alone occupies the container.

 Partial pressure of a gas  = Mole fraction of a gas x Total pressure of mixture

        Number of moles  = \frac{mass}{molar mass}

Number of moles of He  = \frac{5.5}{4}   = 1.375mole

Number of moles of Ne = \frac{15}{20}   = 0.75mole

Number of moles of Kr = \frac{35}{83.8}  = 0.42mole

Sum total of moles  = 1.375 + 0.75 + 0.42 = 2.54moles

Partial pressure of He  = \frac{1.375}{2.54} x 1atm = 0.54atm

Partial pressure of Ne = \frac{0.75}{2.54} x 1atm  = 0.29atm

Partial pressure of kr  = \frac{0.42}{2.54} x 1atm = 0.17atm

You might be interested in
Calculate the answer. Express it in scientific notation and make sure it has the correct number of significant figures. (2.45 x
Lerok [7]
The answer is 10,046,528.8 !
3 0
3 years ago
Read 2 more answers
DESPERATE WILL GIVE BRAINLIST AND THANKS FOR COREECT ANSWER
Oksi-84 [34.3K]

Answer:

<h3>the coded blueprint for life </h3>

Explanation:

<h3>I hope it helps ❤❤❤</h3>
8 0
3 years ago
Help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
nata0808 [166]

Answer:

1.

  • A) protons and neutrons
  • B) electrons

2.

  • By changing the number of proton.

Explanation:

Protons and neutrons are located at the center of an atom which is nucleus .

Electrons will orbit around the nucleus .

3 0
3 years ago
Read 2 more answers
Chromium has four naturally occurring isotopes. cr-50 (mass of 49.946 amu and 4.35% abundance); cr-52 (mass of 51.941 amu and 83
satela [25.4K]

The average atomic mass of chromium to 3 decimal points is 52. 055 g. mol.

<h3>What is the average atomic mass?</h3>

"The weighted average mass of the atoms in a naturally occurring sample of an element is the average atomic mass, also known as atomic weight."

Given the different isotopes of chromium.

The four isotopes of chromium are cr-50, cr-52, cr-53 cr-54.

The average atomic mass will be

Let us take the weighted average of your isotopes:

50 × 0.0434 + 52 × 0.8379 + 53 × 0.095 + 54 × 0.0237 = 52. 055 g.

Thus, the average atomic mass of chromium is 52. 055 g.

To learn more about average atomic mass, refer to the link:

brainly.com/question/13753702

#SPJ4

3 0
2 years ago
Which type of reaction involves the transfer of
baherus [9]
The type of reaction that involved the transfer of electrons is oxidation-reduction
7 0
2 years ago
Read 2 more answers
Other questions:
  • One of the of sulfur is represented as sulfur-35 or S- 35. What does the number 35 signify?
    5·2 answers
  • Questions below :) These ones are fairly easy :P
    15·1 answer
  • Write the symbol for every chemical element that has atomic number greater than 55 and atomic mass less than 144.0 u
    11·1 answer
  • Select true or false: there will be no fe(oh)3 precipitate in a buffer solution that is 0.60 m ch3cooh and 0.10 m ch3coona, if t
    12·1 answer
  • N the plasma, the quantity of oxygen in solution is ________. only about 1.5% of the oxygen carried in blood about equal to the
    7·1 answer
  • 0.0650 mm in scientific notation
    12·1 answer
  • What are the three ions and/or molecules found in pure water?
    9·1 answer
  • How many neutron and protons are in lithium-7?
    15·1 answer
  • List 2 ways strong and weak acids differ.
    10·1 answer
  • How many grams of chromium metal are plated out when a constant current of 8.00 A is passed through an aqueous solution containi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!