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
Kisachek [45]
3 years ago
11

Calculate the total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 dm8 at 27 ∘C. (R =

0.083 bar dm8 K−1 mol−1​
Chemistry
1 answer:
maxonik [38]3 years ago
7 0

Answer:

Total pressure =  56.77 bar

Explanation:

Given data:

Mass of dioxygen = 8 g

Mass of dihydrogen = 4 g

Volume of vessel = 1 dm³

Temperature = 27°C (27+273 = 300 K)

R = 0.083 bar.dm³ / mol.K

Total pressure = ?

Solution:

Number of moles of dioxygen:

Number of moles = mass/molar mass

Number of moles = 8 g/ 32 g/mol

Number of moles = 0.25 mol

Pressure of dioxygen:

PV = nRT

P = nRT/V

P = 0.25 mol × 0.083 bar.dm³ / mol.K × 300 K / 1 dm³

P = 6.97 bar.dm³  /1 dm³

P = 6.97 bar

Number of moles of dihydrogen:

Number of moles = mass/molar mass

Number of moles = 4 g/ 2 g/mol

Number of moles = 2 mol

Pressure of dihydrogen:

PV = nRT

P = nRT/V

P = 2 mol × 0.083 bar.dm³ / mol.K × 300 K / 1 dm³

P = 49.8 bar.dm³  /1 dm³

P = 49.8 bar

Total pressure of mixture in a vessel:

Total pressure = P (O₂) + P(H₂)

Total pressure =  6.97 bar + 49.8 bar

Total pressure =  56.77 bar

You might be interested in
Propene also reacts with bromine CH2CHCH3+Br2-> C3H6Br2
Arte-miy333 [17]

Answer: Correct.

Explanation: Propene reacts with bromine and add two bromine atoms give the 1,2-dibromopropane. Two bromine atoms are added to the double bond carbon. Ethene was a non polar alkene. But propene is a polar molecule. This reaction is also an electrophilic addition reaction.

3 0
3 years ago
Some of the physical properties used to distinguish between the three groups are: _________
Pavlova-9 [17]

The Group 3A metals have three valence electrons in their highest-energy orbitals (ns2p1). They have higher ionization energies than the Group 1A and 2A elements, and are ionized to form a 3+ charges. The Group 3A metals are silvery in appearance, and like all metals are good conductors of electricity.

7 0
3 years ago
Read 2 more answers
4 mol of water is made up of 2.408×10^24 molecules of water.
zhenek [66]
It would be 20 give me bravest
6 0
3 years ago
Has any one done 2020 chemistry paper 1 aqa gcse
Mars2501 [29]

Answer:

what do you mean?

Explanation:

7 0
3 years ago
Question 5 of 10
OverLord2011 [107]

Answer:

4.2  g  

Explanation:

The VOLUME of the ring is   4.2 - 4.0 = .2 ml  = .2 cm^3

the MASS of the ring is this times the density

.2 cm^3  *  21 g/cm^3 = 4.2 g

4 0
2 years ago
Read 2 more answers
Other questions:
  • Even though the phone is ringing no sound comes out of the jar what does this tell you about the space inside the jar
    6·1 answer
  • The invisible force that surrounds a magnet is called the ________
    9·1 answer
  • What is the density of sand if the volume is 40.0 ml and the mass is 62.3 g?
    14·2 answers
  • The Blood-Brain Barrier (BBB) is a semipermeable membrane that separates blood and the brain. Which choices below would successf
    12·1 answer
  • Are phase changes physical or chemical changes? why?
    11·2 answers
  • Which elements are likely to close electrons?
    15·1 answer
  • A student reports the density of an article to be 1.92 g/mL. The accepted value of density is 1.89 g/mL. Calculate the student's
    13·1 answer
  • In a chemical equation, the symbol that takes the place of the words reacts with is an) Example HCI + KOH-KCI + H2O
    10·1 answer
  • Which substance contains positive ions immersed in a sea of mobile electrons?
    13·1 answer
  • What was John Dalton's contribution to the development of the atomic theory?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!