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
lys-0071 [83]
3 years ago
6

Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 21 ∘C∘C. Express the pressure

s in atmospheres to three significant digits separated by commas.
Chemistry
1 answer:
Volgvan3 years ago
6 0

The question is incomplete, complete question is ;

A deep-sea diver uses a gas cylinder with a volume of 10.0 L and a content of 51.8 g of O_2 and 33.1 g of He. Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 21°C.Express the pressures in atmospheres to three significant digits separated by commas.

Answer:

Partial pressure of the oxygen gas is 3.91 atm.

Partial pressure of the helium gas is 20.0 atm

Total pressure of the gases is 24.0 atm

Explanation:

Moles of oxygen gas = n_1=\frac{51.8}{32 g/mol}=1.619 mol

Moles of helium gas = n_2=\frac{33.1 g}{4 g/mol}=8.275 mol

Total moles of gas = n_1+n_2=(1.619 +8.275 ) mole=9.894 mol

Volume of the cylinder = V = 10.0 L

Total pressure in the cylinder = P = ?

Temperature of the gas in cylinder = T = 21°C = 21 + 273 K = 294 K

PV = nRT ( ideal gas equation )

P=\frac{nRT}{V}

=\frac{9.894 mol\times 0.0821 atm L/mol K\times 294 K}{10.0 L}

P = 23.88 atm ≈ 23.9

Partial pressure of the individual gas will be determined by the help of Dalton's law:

partial pressure = Total pressure × mole fraction of gas

Partial pressure of the oxygen gas

p_{1}=P\times \chi_{1}=P\times \frac{n_1}{n_1+n_2}

p_1=23.88 atm\times \frac{1.619 mol}{9.894 mol}=3.91 atm

Partial pressure of the helium gas

p_{2}=P\times \chi_{2}=P\times \frac{n_2}{n_1+n_2}

p_2=23.88 atm\times \frac{8.275 mol}{9.894 mol}=19.97 atm\approx 20.0 atm

You might be interested in
Binary ionic compounds are named
aleksklad [387]
Binary compounds<span> are easy to </span>name<span>. The cation is always </span>named<span> first and gets its </span>name<span> from the </span>name <span>of the element. For example, K+ is </span>called<span> a potassium </span>ion<span>. An anion also takes its </span>name<span> from its element, but it adds the suffix -ide to it.</span>
8 0
3 years ago
Why does nobody fking answer my questions.
raketka [301]

Answer:

by wearing of rocks

Explanation:

earths gravity your welcome

6 0
2 years ago
Read 2 more answers
Consider the following combustion reaction:
ZanzabumX [31]

Answer:

vxcvggccbbcCbnmhxx vgfscvjjg

6 0
3 years ago
Read 2 more answers
What unusual thing can the bull shark do?
kotegsom [21]
Bull sharks have the unique ability of keeping salt in their bodies even freshwater
3 0
3 years ago
Explain how to use an acid-base indicator to determine pH
Annette [7]
Acid-base indicator changes color based on pH.

drop some in a solution n watch the color changes. different indicators show different colors at different pH. they usually have standard colors for comparison.
7 0
2 years ago
Read 2 more answers
Other questions:
  • At 20 degrees celsius, how much sodium chloride could be dissolved in 2L of water
    5·1 answer
  • What system does brain and spinal cord goes to?
    10·1 answer
  • Anyone know ?? I need help with this
    15·1 answer
  • Which change is most likely to occur when a molecule of h2 and a molecule i2 collide with proper orientation and sufficient ener
    14·2 answers
  • Which character of Life distinguishes a fire and a flowering plant​
    5·1 answer
  • How many moles are in 17.2g k2s
    14·1 answer
  • Label each element in the chemical reaction below with the correct oxidation state
    15·1 answer
  • True or false: <br> The following equation is balanced properly: 6CO2 + 6H2O → C6H12O6 + O2
    12·1 answer
  • When a rock is wrapped in aluminum foil, the radiation detected from the 29
    9·1 answer
  • The polarity of a bond between two elements can be best determined by.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!