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
Nata [24]
2 years ago
15

A mixture of hydrogen and argon gases is maintained in a 6.47 L flask at a pressure of 3.43 atm and a temperature of 85 °C. If t

he gas mixture contains 1.10 grams of hydrogen, the number of grams of argon in the mixture is _______ g.
Chemistry
2 answers:
11Alexandr11 [23.1K]2 years ago
8 0

Answer:

The mixture contains 8.23 g of Ar

Explanation:

Let's solve this with the Ideal Gases Law

Total pressure of a mixture = (Total moles . R . T) / V

We convert T° from °C to K → 85°C + 273 = 358K

3.43 atm = (Moles . 0.082 L.atm/mol.K . 358K) / 6.47L

(3.43 atm . 6.47L) / (0.082 L.atm/mol.K . 358K) = Moles

0.756= Total moles from the mixture

Moles of Ar + Moles of H₂ = 0.756 moles

Moles of Ar + 1.10 g / 2g/mol = 0.756 moles

Moles of Ar = 0.756 moles - 0.55 moles H₂ → 0.206

We convert the moles to g → 0.206 mol . 39.95 g / 1 mol = 8.23 g

OLga [1]2 years ago
3 0

Answer:

The mass of argon is 8.42 grams

Explanation:

Step 1: Data given

Volume = 6.47 L

Pressure = 3.43 atm

Temperature = 85 °C = 358 K

Mass of hydrgen = 1.0 grams

Step 2: Calculate the number of moles

p*V = n*R*T

n = (p*V)/(R*T)

⇒with n = the number of moles = TO BE DETERMINED

⇒with p = the pressure = 3.43 atm

⇒with V = the volume = 6.47 L

⇒with R = the gas constant = 0.08206 L*atm/mol*K

⇒with T =the temperature = 85 °C  = 358 K

n = (3.43*6.47) / (0.08206 * 358)

n = 0.7554 moles

Step 3: Calculate moles Ar

Thus,  0.7554 = mol of Ar + mol of H2

 

There is 1.10 grams ofH2 gas

Moles H2 =  1.10 grams / 2.02 g/mol

Moles H2 = 0.5446 moles H2

Moles Ar = 0.7554 - 0.5446 = 0.2108 moles

 

Step 4: Calculate mass Ar

Mass Ar = moles Ar * molar mass Ar

Mass Ar = 0.2108 moles *39.95 g/mol

MAss Ar = 8.42 grams

The mass of argon is 8.42 grams

You might be interested in
CULINARY ARTS
nexus9112 [7]
36 divided by 12 is 3. you need three times as much of the recipe to make 36 brownies. The answer is B
4 0
3 years ago
Read 2 more answers
What medium can your voice travel through?
Nookie1986 [14]

Sound waves are most effective when traveling through solids. Less effective when in liquids and least effective in air.

3 0
3 years ago
Read 2 more answers
What effect do antibiotics have on bacteria?
STALIN [3.7K]

Answer:

Antibiotics destroy bacteria

8 0
3 years ago
What is the charge of this atom? <br> 65 protons <br> 60 electrons <br><br> A)-5<br> B)+5<br> C)0
Pani-rosa [81]

Answer:

B. +5

Explanation:

4 0
2 years ago
Read 2 more answers
Why is Galileo Galilei impotant?
Rainbow [258]

Answer:

He provided a number of scientific insights that laid the foundation for future scientists. He also improved telescope that helped further the understanding of the world and universe.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Be sure to answer all parts. Which product(s) form(s) at each electrode in the aqueous electrolysis of the following salts? Sele
    15·1 answer
  • What is the most common type of climate/ecosystem found in the Congo River basin?
    10·2 answers
  • 1.1 Outline a method for separating the chalk from potassium chloride,
    13·1 answer
  • What is the molarity of 500 ml of a solution containing 85.0g AgNO3? A) 0.5 M B) 1.0 M C) 2.0 M D) 5.0 M
    6·1 answer
  • Which elements have atoms that are likely to form an anion?
    6·1 answer
  • What is the hardest form of carbon
    15·2 answers
  • How many grams of a precipitate are formed after mixing 10.0 mL of a 1.30 M solution of sodium sulfate with 20.0 mL of a 1.10 M
    7·1 answer
  • Changes that occur during a chemical reaction are represented by a(n) _?_.
    9·1 answer
  • What is the importance of different types of mirrors and lenses?​
    8·1 answer
  • HELP!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!