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
zzz [600]
3 years ago
9

What is the osmotic pressure of a 100 ml of toluene solution that contains a total of 0.005 moles of a polymer dissolved in it a

t 25°c? give your answer in atm?
Chemistry
1 answer:
allsm [11]3 years ago
4 0

Osmotic pressure is the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis.

That can be mathematical computed from the expression:

Osmotic pressure=C×R×T

Where,

C= Concentration

R=Gas constant

T=Temperature

Concentration=Number of moles of solute/Volume(L)

=0.005*1000/100

=0.05

R= 0.08206 atm L/mol K

T=25+273

=298

Osmotic pressure= 0.05×0.08206×298

=1.2 atm

You might be interested in
The scientific notation 2 x 10-2 has what value? <br> 0.02<br> 0.002<br> 0.2<br> 0.0002
Marta_Voda [28]
Since the exponent is negative, you move the decimal (2.0) to the left two spots leaving you with .02
7 0
3 years ago
Read 2 more answers
A cylinder, with a piston pressing down with a constant pressure, is filled with 1.90 moles of a gas (n1), and its volume is 42.
EleoNora [17]
Avagadro's law gives the relationship between volume of gas and amount of moles of gas. It states that at constant temperature and pressure, volume of gas (V) is directly proportional to number of moles of gas (n).
V/n = k
where k - constant 
\frac{V1}{n1} =  \frac{V2}{n2}
V1 = 42.0 L
n1 = 1.90 mol
n2 = 1.90 mol - 0.600 = 1.30 mol
substituting the values in the equation
\frac{42.0 L}{1.90 mol} =  \frac{V}{1.30 mol}
V = 28.7 L
Volume of the gas is 28.7 L 
3 0
3 years ago
Wine goes bad soon after opening because the ethanol (CH,CH,OH) in it reacts with oxygen gas (0.) from the air to form water (11
daser333 [38]

<u>Answer:</u> The mass of water produced is 1.8 grams

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}      .....(1)

Given mass of ethanol = 4.59 g

Molar mass of ethanol = 46.07 g/mol

Putting values in equation 1, we get:

\text{Moles of ethanol}=\frac{4.59g}{46.07g/mol}=0.0996mol

The chemical equation for the reaction of ethanol with oxygen gas follows:

CH_3CH_2OH+O_2\rightarrow CH_3COOH+H_2O

By Stoichiometry of the reaction;

1 mole of ethanol produces 1 mole of water.

So, 0.0996 moles of ethanol will produce = \frac{1}{1}\times 0.0996=0.0996mol of water.

Now, calculating the mass of water from equation 1, we get:

Molar mass of water = 18 g/mol

Moles of water = 0.0996 moles

Putting values in equation 1, we get:

0.0996mol=\frac{\text{Mass of water}}{18g/mol}\\\\\text{Mass of water}=(0.0996mol\times 18g/mol)=1.8g

Hence, the mass of water produced is 1.8 grams

5 0
3 years ago
In general the state of matter with the most energy is ?
CaHeK987 [17]

<u>Gas</u>

<em>Gas</em><em> </em><em>particles</em><em> </em><em>got</em><em> </em><em>the</em><em> </em><em>most</em><em> </em><em>energy</em><em> </em><em>because of how freely the molecules move</em>

Hope this helped you, have a good day bro cya)

8 0
3 years ago
Read 2 more answers
A total of 5 mol iron oxide has a mass of (798.5g)
Anit [1.1K]

Answer:

Yes , 5 mole of Iron Oxide has mass of  798.5 g

Explanation:

Formula of iron oxide:

Fe_{2}O_{3}

Atomic mass of Fe = 55.84 amu

Atomic mass of O = 15.99 amu

Molar mass of Fe2O3 = 2(atomic mass of Fe) + 3(atomic mass of O)

= 2(55.84) + 3(15.99)

=111.68 + 47.97

= 159.69 g/mol

<u>Molar mass</u> always equal to <u>1 mole</u> of the substance.

1 mole = 159.69 g

5 mole =

=5\times159.69

= 798.45 g

6 0
3 years ago
Other questions:
  • What is the Moleular geometry of Xe0F4
    6·1 answer
  • Which happens when a reversible reaction reaches a state of chemical equilibrium?
    15·1 answer
  • A piece of wood with a density of 0.85 g/cm^3 has a mass of 25 g. what is the volume of the wood?
    6·2 answers
  • Mrs. Lewis gives you a piece of iron and asks you to determine the physical and chemical properties of the metal. She wants you
    10·1 answer
  • Cloudy nights can be warmer than clear nights because clouds trap heat
    12·2 answers
  • suppose the burner under the pan of boiling water is turned to a higher settings. how will this affect the temperature of the wa
    15·1 answer
  • Which element has a smaller ionic radius than magnesium (Mg)?
    10·1 answer
  • Need help with this science question............
    15·1 answer
  • In which direction will the following equilibrium shift when solid sodium fluoride is added to an aqueous solution of acetic aci
    6·1 answer
  • What is the difference between a material having the chemical property of being flammable vs having the chemical property of bei
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!