CHEMISTRY HIGH SCHOOL

The solution in the two arms of the U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is half filled with a solution of 2 M sucrose and 1 M glucose. Side B is half filled with 1 M sucrose and 2 M glucose. Initially, the liquid levels on both sides are equal. After the system reaches equilibrium. what changes are observed?

Answers

Answer 1
Answer:

Answer:

The liquid level will rise in Side A and drop in Side B.

Step-by-step explanation:

The membrane is impermeable to sucrose, but permeable to sucrose and water.

     Side A          Side B      

2 M sucrose   1 M sucrose

1 M glucose   2 M glucose

(a) Ignoring osmotic effects

The glucose will diffuse spontaneously from the side with higher concentration to that of lower concentration until equilibrium is established. There is no change in volume on either side.

At this point, we have

    Side A                Side B        

2    M sucrose    1 M sucrose

1.5 M glucose    1.5 M glucose

=====

(b) With osmotic effects

The solute concentration on Side A is greater than on Side B.

Water will diffuse into Side A.

The liquid level will rise in Side A and drop in Side B.


Related Questions

HIGH SCHOOL

What do oxygen (O) and bromine (Br) have in common? They both tend to gain electrons to gain stability. They both have seven valence electrons. They are both halogens. They are both unreactive.

Answers

Oxygen and bromine are both nonmetals, and most nonmetals tend to gain electrons to gain stability. 

Only bromine has seven valence electrons - oxygen has six.

Only bromine is a halogen (group 7)

They are both highly reactive. Only the noble gases (group 8) are unreactive elements.

Oxygen as well as bromine were indeed nonmetals, and the majority of nonmetals tend to prefer up electrons to become more stable.

What is nonmetals?

Nonmetals include colorless vapors and glossy, high melting point solids; they are chemical elements that often lacking a majority of metallic qualities.

What is electrons?

The electron would be a subatomic particle with a negatively elementary charged electric charge.

Therefore, Oxygen as well as bromine were indeed nonmetals, and the majority of nonmetals tend to prefer up electrons to become more stable.

To know more about electron and nonmetals

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HIGH SCHOOL

Lead(ii) sulfide (pbs) has a ksp of 3.0 × 10–28. what is the concentration of lead(ii) ions in a saturated solution of pbs? 1.7 × 10–14m 1.5 × 10–14m 3.0 × 10–14m

Answers

PbS partially dissociates into ions as Pb²⁺ and S²⁻ in water. The balanced reaction is
           PbS(s) ⇄ Pb²⁺(aq) + S²⁻(aq)
In the saturated solution, the reaction is at equilibrium. 
Let's assume that solubility of PbS in saturated solution is "X".
Then according to the stoichiometry,  
solubility of PbS = equilibrium concentration of Pb²⁺(aq) = equilibrium concentration of S²⁻(aq) = X

            Ksp = [Pb²⁺(aq) ][S²⁻(aq)]
            Ksp = X * X  
 3.0 × 10⁻²⁸ = X²
              X   = 1.7 x 10⁻¹⁴ M.

Hence the concentration of lead(ii) ions in a saturated solution of PbS is 1.7 x 10⁻¹⁴ M.
MIDDLE SCHOOL

Raina is ready to start taking photographs at a crime scene after she secured the crime scene. Which photos should she take first

Answers

Answer:

D.

wide-angle photos of the entire crime scene

Explanation:

Answer:

prints such as foot and  finger

Explanation:

COLLEGE

What is the mass of 2.50L of SO2 gas at stp

Answers

STP is abbreviation for Standard Temperature and Pressure at which the temperature is 273 K and pressure is 1 atm 
- At these conditions the molar volume is equal to 22.4 L
so 1 mole of SO₂ volume = 22.4 L 
     ? mole of SO₂ volume = 2.5 L
number of moles = 2.5 / 22.4 = 0.1116 mol
mass of SO₂ = 0.1116 * 64.063 = 7.15 g

Answer: 4.84 grams

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass, occupies 22.4 L of volume at STP and contains avogadro's number of particles.

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

1 mole of weighs = 44 g

0.11 moles of weigh =

Thus mass of 2.5 L of weigh 4.84 grams.

MIDDLE SCHOOL

Calculate the atomic mass for zinc given the following data for its natural isotopes: 64Zn 63.929 amu 48.89 %
66Zn 65.926 amu 27.81 %
67Zn 66.927 amu 4.11 %
68Zn 67.925 amu 18.57 %
70Zn 69.925 amu 0.62 %

Answers

I'm confused on the question.. Could you explain it for me? and I'll answer this for you!
HIGH SCHOOL

As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.71 atm and a temperature of 25.0 C, what is the solubility of N2 in a diver's blood? [Use the value of the Henry's law constant k calculated , 6.26 x 10^{-4} (mol/(L*atm).]

Assume that the composition of the air in the tank is the same as on land and that all of the dissolved nitrogen remains in the blood.
Express your answer with the appropriate units.

Answers

Answer:

The molar solubility of nitrogen gas is .

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

where,

= Henry's constant =

= partial pressure of nitrogen gas

Total air pressure = P = 2.71 atm

Percentage of nitrogen in air = 78.09%

Mole fraction of nitrogen ,

Putting values in above equation, we get:

Hence, the molar solubility of nitrogen gas is .

MIDDLE SCHOOL

The temperature of a 15-g sample of lead metal increases from 22 °C to 37 °C upon the addition of 29.0 J of heat. The specific heat capacity of the lead is what?

Answers

Answer:

0.13 J/g.°C.

Explanation:

  • To solve this problem, we can use the relation:

Q = m.c.ΔT,

where, Q is the amount of heat absorbed by lead (Q = 29.0 J).

m is the mass of lead (m = 15.0 g).

c is the specific heat capacity of lead (c = ??? J/g.°C).

ΔT is the temperature difference (final T - initial T) (ΔT =  37 °C - 22 °C = 15.0 °C).

∵ Q = m.c.ΔT

∴ c = Q/m.ΔT = (29.0 J)/(15.0 g)(15.0 °C) = 01288 J/g.°C ≅ 0.13 J/g.°C.

MIDDLE SCHOOL

Why is milk considered a colloid?

Answers

Answer:

Milk is considered a colloid because it is a homogeneous mixture

Explanation:

MIDDLE SCHOOL

Please help!!! which option gives two example of clastic sedimentary rocks
a. limestone and sandstone
b. coquina and shale
c. shale and limestone
d. shale and sandstone

Answers

D. Shale and sandstone are both considered sedimentary rocks.
Answer for that they show and Lynnstone
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