Table of Contents
- 1 What is the difference in concentration from one area to another?
- 2 What is it called when there is a difference in concentration?
- 3 What is net diffusion?
- 4 How do you calculate concentration difference?
- 5 How is the concentration of a solution expressed?
- 6 How are concentration and dilute related in chemistry?
What is the difference in concentration from one area to another?
The difference in the concentration of a substance between two areas is called the concentration gradient . The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse. The direction of diffusion is said to be ‘down’ or ‘with’ the concentration gradient.
What is it called when there is a difference in concentration?
A concentration gradient is the difference in the concentration of a substance from one location to another. Molecules diffuse down their concentration gradient—that is, from a region of higher concentration to a region of lower concentration.
What is a concentration difference?
Molecular diffusion occurs due to the molecules concentration difference, which is defined as “the process by which matter is transported from one part of a system to another as a result of random molecular motions” (Crank, 1975).
What is a concentration gradient in a cell?
In biology, a concentration gradient results from the unequal distribution of particles (e.g. ions) between two solutions, i.e. the intracellular fluid (the solution inside the cell) and the extracellular fluid (the solution outside the cell). The particles may move along or against their concentration gradient.
What is net diffusion?
Net diffusion is when the flow of solute particle moving in one direction is bigger than the flow of solute particles moving in the opposite direction.
How do you calculate concentration difference?
Use the formula x = (c ÷ V) × 100 to convert the concentration (c) and volume (V) of the final solution to a percentage. In the example, c = 60 ml and V = 350 ml. Solve the above formula for x, which is the percentage concentration of the final solution.
What is driven by concentration gradient?
driven by concentration gradients or intracellular energy stores. [3]That is, it will move from a region of higher water concentration (more dilute solution) down its gradient to a region of lower water concentration (more concentrated solution).
Which is the best definition of a concentration?
In chemistry, concentration refers to the amount of a substance per defined space. Another definition is that concentration is the ratio of solute in a solution to either solvent or total solution. Concentrated refers to chemical solutions that have high concentrations of a large amount of solute in the solution.
How is the concentration of a solution expressed?
Another definition is that concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume. However, the solute concentration may also be expressed in moles or units of volume. Instead of volume, concentration may be per unit mass.
Two related terms are concentrated and dilute. Concentrated refers to chemical solutions that have high concentrations of a large amount of solute in the solution. If a solution is concentrated to the point where no more solute will dissolve in the solvent, it is said to be saturated.