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
Elis [28]
3 years ago
15

A 1.00 L flask is filled with 1.10 g of argon at 25 ∘C. A sample of ethane vapor is added to the same flask until the total pres

sure is 1.100 atm .1. Part AWhat is the partial pressure of argon, PAr, in the flask?Express your answer to three significant figures and include the appropriate units.2. Part BWhat is the partial pressure of ethane, Pethane, in the flask?Express your answer to three significant figures and include the appropriate units.
Chemistry
1 answer:
Alex Ar [27]3 years ago
7 0

Answer: a) Partial pressure of argon is 0.673 atm.

b) Partial pressure of ethane is 0.427 atm.

Explanation:

According to the ideal gas equation:'

PV=nRT

P = Pressure of the argon gas = ?

V= Volume of the gas = 1.00 L

T= Temperature of the gas = 25°C = 298 K       (0°C = 273 K)

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas = \frac{\text {given mass}}{\text {Molar mass}}=\frac{1.10g}{40g/mol}=0.0275moles

P=\frac{nRT}{V}=\frac{0.0275\times 0.0821\times 298}{1.00}=0.673atm

Thus the partial pressure of argon is 0.673 atm.

b) According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_1+p_2

p_{total}=p_{Ar}+p_{ethane}

1.100=0.673+p_{ethane}

1.100-0.673=p_{ethane}

p_{ethane}=0.427atm

Thus partial pressure of ethane is 0.427 atm.

You might be interested in
How many moles of NO3 are there in 6.2g
weeeeeb [17]
<span>6.2 divided by the mass number of NO3 is 0.1 moles.</span>
4 0
3 years ago
7. A nonpolar covalent bond (i.e., pure covalent) would form in which one of the following pairs of atoms? A) Na Cl B) H Cl C) L
padilas [110]

Answer:

E) Br Br

Explanation:

Covalent bond -

Covalent bond is the bond which is formed with the sharing of the electrons between the two atoms which are taking part in the bond. It is generally formed between the atoms with similar electronegativity values.

It is the bond which is generally occurs within non metals as they share electrons to complete their octet.

The difference in the electronegativity values of the atoms involving in a covalent bond must not exceed the value of 1.7 .

A covalent bond to be non polar in nature , then the atoms need to have almost similar electronegativity , so that they won't split into partial negative and partial positive charge .

Hence , from the given options of the question ,

E) Br Br , both the atoms are same , hence same electronegativity , therefore are non - polar in nature .

8 0
3 years ago
What’s the formula for Lead(II) chlorite?
elena-s [515]

Answer:

Pb(ClO2)2

Explanation:

4 0
3 years ago
How many independent variables can be tested in a standard scientific experiment
Shalnov [3]

One independent variable

6 0
3 years ago
Which comppund contains both ionic and covalent bonds
Anna11 [10]

Answer:

potassium contains both Ionic and covalent bonds

3 0
2 years ago
Other questions:
  • How many liters of oxygen are required to burn 3.86 l of carbon monoxide?
    13·2 answers
  • Match the organelles to their functions.
    11·2 answers
  • A variation of the acetamidomalonate synthesis can be used to synthesize threonine. The process involves the following steps: Et
    9·1 answer
  • Computer model that usually shows a process is called
    6·1 answer
  • (04.02 MC)
    5·1 answer
  • What mass of copper is produced when zinc is added to a solution containing 31.9g copper ii tetraoxosulphate vi
    8·1 answer
  • An experiment was undertaken to determine the effect of different liquids upon the swelling of a vulcanized sample of natural ru
    5·1 answer
  • Which sample would have the same number of molecules as 11.2L of He (g) at 273K and 202kPa?
    12·1 answer
  • Need to finish TODAY ASAP! HIgh point questions
    6·2 answers
  • 2. If you have an unknown quantity of gas at a pressure of 1.2atm, a volume of 31 L, and a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!