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
yuradex [85]
3 years ago
14

A saturated solution was formed when 5.16×10−2 L of argon, at a pressure of 1.0 atm and temperature of 25 ∘C, was dissolved in 1

.0 L of water.
Calculate the Henry's law constant for argon. it must be im M/atm
Chemistry
1 answer:
liraira [26]3 years ago
5 0

Answer:

The Henry's law constant for argon is k=2.11*10^{-3}\frac{ M}{atm}

Explanation:

Henry's Law indicates that the solubility of a gas in a liquid at a certain temperature is proportional to the partial pressure of the gas on the liquid.

C = k*P

where C is the solubility, P the partial pressure and k is the Henry constant.

So, being the concentration C=\frac{ngas}{V}  

where ngas is the number of moles of gas and V is the volume of the solution, you must calculate the number of moles ngas. This is determined by the Ideal Gas Law: P*V=n*R*T where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. So n=\frac{P*V}{R*T}

In this case:

  • P=PAr= 1 atm
  • V=VAr= 5.16*10⁻² L
  • R=0.082 \frac{atm*L}{mol*K}
  • T=25 °C=298 °K

Then:

n=\frac{1 atm*5.16*10^{-2} L}{0.082 \frac{atm*L}{mol*K} *298K}

Solving:

n= 2.11 *10⁻³ moles

So: C=\frac{ngas}{V}=\frac{2.11*10^{-3} moles}{1 L} =2.11*10^{-3} \frac{moles}{L}= 2.11*10^{-3} M

Using Henry's Law and being C=CAr and P =PAr:

2.11*10⁻³ M= k* 1 atm

Solving:

k=\frac{2.11*10^{-3} M}{1 atm}

You get:

k=2.11*10^{-3}\frac{ M}{atm}

<u><em>The Henry's law constant for argon is </em></u>k=2.11*10^{-3}\frac{ M}{atm}<u><em></em></u>

You might be interested in
Explain this method (Froth floatation method)..........​
Svetach [21]

Answer:

froth flotation is a technique commonly used in the mining industry. In this technique, particles of interest are physically separated from a liquid phase as a result of differences in the ability of air bubbles to selectively adhere to the surface of the particles, based upon their hydrophobicity.

Explanation:

Froth floatation method is commonly used to concentrate sulphide ore such as galena (PbS), zinc blende (ZnS) etc. (ii) In this method, the metaalic ore particles which are perferentially wetted by oil can be separated from gangue. (iii) In this method, the crushed ore is suspended in water and mixed with frothing agent such as pine oil, eucalyptus oil etc. (iv) A small quantity of sodium ethyl xanthate which act as a collector is also added. (v) A froth is generated by blowing air through this mixture. (vi) The collector molecules attach to the ore particles and make them water repellent. (vii) As a result, ore parrticles, wetted by the oil, rise to the surface along with the froth. (viii) The froth is skimmed off and dried to recover the concentration ore. (ix) The gangue particles that are preferentially wetted by water settle at the bottom.

3 0
2 years ago
How fast do i have to run 250 m in 30 seconds
elena-14-01-66 [18.8K]

Answer:

S=D/T

250/30= 8.33 miles

Explanation:

7 0
2 years ago
How many moles of k3po4 can be formed when 4.4 moles of h3po4 react with 3.8 moles of koh
vazorg [7]
1.27moles of K3PO4 can be formed.

7 0
3 years ago
Which type of cloud would you expect the heaviest precipitation?
barxatty [35]

It is the nimbostratus cloud.  

4 0
3 years ago
An element has the electronic configuration 1s22s22p63s23p63d104s24p65s2. identify the element.
o-na [289]
The answer is Strontium
8 0
3 years ago
Other questions:
  • Which element is present in every organic compound?
    7·1 answer
  • a flask was filled with SO2 at a partial pressure of 0.409 atm and O2 at a partial pressure of 0.601 atm. The following gas-phas
    6·1 answer
  • At what temperature is a neon a: <br> 1) Solid <br> 2) Liquid <br> 3) Gas
    5·1 answer
  • What is non lustrous ?
    5·2 answers
  • How many molecules are present in 3.09 mol of silicon dioxide, SiO2
    9·1 answer
  • How many valence electrons does Florine have?<br> O 5<br> O 7<br> 3<br> 9
    6·2 answers
  • Iron + --&gt; iron sulphate + copper What is missing ? Iron sulphate Copper sulphate Copper oxideIron oxide
    14·1 answer
  • the respiratory system includes a layer of cells in the air passage that clean the air before it gets to the lungs.this layer of
    10·1 answer
  • 3 Cu
    8·1 answer
  • An atom has 18 neutrons and 17 proton. a) How many electrons are in this atom ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!