During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will continue to move across the membrane ...
What is when the concentration of molecules is equal in two areas?
Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes “down the concentration gradient.” The end result of diffusion is an equal concentration, or equilibrium , of molecules on both sides of the membrane.
What is achieved when the concentration of a substance is the same on both sides of the membrane?
When the concentration of the solute is the same throughout a system, the system has reached equilibrium . ... At that point, the concentration of the substance on both sides of the cell membrane will be the same.
When the concentration of two solutions is the same?
| A B | isotonic when the concentration of two solutions is the same | hypertonic when comparing two solutions, the solution with the greater concentration of solutes | hypotonic when comparing two solutions, the solution with the lesser concentration of solutes |
|---|
When the concentration of molecules is isotonic the molecules will?
There will only be free movement of water (H2O) molecules across the membrane without changing the concentration of solutes on either side, in case of isotonic environment. Thus, water molecules will leave as well as enter the cell.
When the concentration is the same on both sides outside and inside the solution is?
If a cell is placed in an isotonic solution , there will be no net flow of water into or out of the cell, and the cell’s volume will remain stable. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.
What happens when the concentration of a solute is equal on both sides of a plasma membrane?
the concentration of solute is the same on both sides of a membrane, and the cell volume will not change . the solute concentration is lower on the outside of the cell, causing the water molecules to move into the cell. This results in expansion and possibly causing the cell to burst .
When the concentration of a solute is the same throughout a system the system has reached?
When the concentration of the solute is the same throughout a system, the system has reached equilibrium . There is a higher concentration of solute on one side of the membrane as compared to the other side of the membrane.
DO concentrations add when solutions are combined?
The initial volumes of the two solutions and the final volume of the mixed solution both affect the final concentration , but this method doesn’t take that into account.
Are the concentrations of all of the solutions the same?
No . All solutes have different solubility meaning everyone has a unique about of grams that would dissolve in the same solvent. a solution that has dissolved all the solute it can hold at a given temperature. contains more solute than a saturate one has at a given temperature and crystals form.
When the concentration of molecules is the same throughout a space?
Diffusion . During diffusion, substances move from an area of high concentration to an area of low concentration, until the concentration becomes equal throughout a space.
When the concentration of molecules is equal in a solution?
When thinking about osmosis, we are always comparing solute concentrations between two solutions, and some standard terminology is commonly used to describe these differences: Isotonic : The solutions being compared have equal concentration of solutes. Hypertonic: The solution with the higher concentration of solutes.
Does the concentration change in the same way if you used solid or liquid to add solute?
Adding a solid salt to a saturated solution causes the concentration of that solution to increase / decrease / remain the same . ... Evaporation acting on a saturated solution causes the solution’s concentration to increase / decrease / remain the same.
When the concentration of a solution outside a cell is the same as that inside the cell the solution is said to be ?
Hypotonic solutions can cause the blood cell to burst from the pressure. There are three types of solutions that can occur in your body based on solute concentration: isotonic, hypotonic, and hypertonic. An isotonic solution is one in which the concentration of solutes is the same both inside and outside of the cell.
What is the difference between osmolarity and tonicity?
The terms are different because osmolarity takes into account the total concentration of penetrating solutes and non-penetrating solutes, whereas tonicity takes into account the total concentration of non-freely penetrating solutes only.
How does water move when the concentrations of it are equal on both sides of a membrane?
Osmosis : This is the hydrostatic force acting to equalize the concentration of water on both sides of the membrane that is impermeable to substances dissolved in that water. Water will move along its concentration gradient.
Why does concentration gradient affect the rate of diffusion?
The greater the difference in concentration, the quicker the rate of diffusion . The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. The greater the surface area, the faster the rate of diffusion.
When the concentration of dissolved particles is the same throughout a solution the system is said to be in?
A solution is isotonic to a cell if it has the same Concentration of dissolved particles as the cell.
When the concentration of solute is higher on the side of the membrane in question than the other?
Explanation: A hypotonic environment would mean that the concentration of solute is higher inside the cell than outside, or that the concentration of solvent (usually water) is higher outside the cell.
When the concentration of solute molecules outside the cell is equal to the concentration inside the cell the solution is *?
| Tonicity of solution Solute concentration Water moves... | Hypertonic Higher solute in solution than in cell Out of the cell | Isotonic Equal amounts of solute in cell and solution Into and out of cell at the same time | Hypotonic Lower solute in solution than in cell Into the cell |
|---|
When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm the cell is said to be in a N solution?
Coming back to osmosis, there are three basic types of solution: Isotonic solutions have the same water concentration on both sides of the cell membrane. Blood is isotonic. Hypertonic solutions have less water ( and more solute such as salt or sugar ) than a cell.
How do you combine concentrations?
- Calculating the strength of a mixture of two different concentrations.
- Example 1.
- Method.
- Step 1: Calculate the amount of drug A in each concentration.
- Step 2: Add the two amounts together.
- Step 3: Add the two volumes together.
- Step 4: Put total amount over total volume.
- Student Learning Advisory Service.
How do you find concentration from another concentration?
Divide the mass of the solute by the total volume of the solution. Write out the equation C = m/V , where m is the mass of the solute and V is the total volume of the solution. Plug in the values you found for the mass and volume, and divide them to find the concentration of your solution.
How do you find the concentration of two solutions mixed together?
In general when your are mixing two different concentrations together first calculate number of moles for each solution (n=CV ,V-in liter) then add them together it will be total moles,then concentration of mixture will be = total moles / total volume(liter) .
Why are concentrations of concentrated solutions different?
A concentrated solution is one that has a relatively large amount of dissolved solute . A dilute solution is one that has a relatively small amount of dissolved solute. ... If you were to add more water to an aqueous solution, you would be diluting it because the ratio of solute to solvent would be decreasing.
Why should solutions be expressed in correct concentrations?
The concentration of a solute is very important in studying chemical reactions because it determines how often molecules collide in solution and thus indirectly determines the rates of reactions and the conditions at equilibrium (see chemical equilibrium). Concentration may be expressed in a number of ways.
What happens to concentration when you add more solid why do you think this is?
Adding more of the solid to a saturated solution has no effect . Since the added solid does not change the concentration, it will not cause a change in the solution.
How does concentration change as evaporation occurs?
Evaporation causes the concentration of an unsaturated solution to increases / decreases / remains the same . As a saturated solution (with no solids) is diluted, its concentration increases / decreases / remains the same.
What is it called when molecules are even throughout a space?
When the molecules are even throughout a space – it is called EQUILIBRIUM . Concentration gradient – a difference between concentrations in a space. Molecules will always move down the concentration gradient, toward areas of lesser concentration.
Is concentration constant through a solution?
The solute and solvent interact with each other until the concentration of the two substances is equal throughout the system . The concentration of sugar in the water would be the same from a sample at the top, bottom, or middle of the glass.
Why does concentration stay the same?
That’s because the mass of a substance will change with its volume , and so the concentration changes. Unless, of course, both the solute and solvent are depreciating in volume/mass/moles in an equal ratio, the concentration and molarity will remain the same.
When molecules are even throughout a space is called?
Over time, the molecules of color spread out through the rest of the water. When the molecules are evenly spread throughout the space, the water will become an even color. This process of molecules moving from an area where there are lots of molecules to an area where there are fewer molecules is known as diffusion .
When the concentration of two solutions is the same?
| A B | isotonic when the concentration of two solutions is the same | hypertonic when comparing two solutions, the solution with the greater concentration of solutes | hypotonic when comparing two solutions, the solution with the lesser concentration of solutes |
|---|
When the concentration of molecules is isotonic the molecules will?
There will only be free movement of water (H2O) molecules across the membrane without changing the concentration of solutes on either side, in case of isotonic environment. Thus, water molecules will leave as well as enter the cell.
Is the difference in the concentration of molecules over a distance?
A difference in the concentration of a substance across a distance. Molecules move automatically down the concentration gradient from an area of high concentration to an area of lower concentration. Diffusion continues until the concentration is equal everywhere in space. diffusion is passive transport.
What happens when the concentration of a solute is equal on both sides of a plasma membrane?
the concentration of solute is the same on both sides of a membrane, and the cell volume will not change . the solute concentration is lower on the outside of the cell, causing the water molecules to move into the cell. This results in expansion and possibly causing the cell to burst .
When there are equal concentrations of solute molecules on each side of the cell membrane?
In an isotonic solution , solutes and water are equally concentrated within and outside the cell. 0.9% NaCl (physiologic saline) and 5% dextrose are two common isotonic solutions used. The cell is bathed in a solution with a solute concentration that is similar to its own cytoplasm.
When the osmotic concentration is the same inside and outside the cell?
Isotonic cells have an equal concentration of solutes inside and outside the cell; this equalizes the osmotic pressure on either side of the cell membrane which is a semi-permeable membrane.
