Difine
1- ppm
2-molarity
3-osmotic
4-reverse osmosis
Answers
Answer:
1.In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantity-per-quantity measures, they are pure numbers with no associated units of measurement.
2.Molar concentration is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.
3.Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
a process by which a solvent passes through a porous membrane in the direction opposite to that for natural osmosis when subjected to a hydrostatic pressure greater than the osmotic pressure.
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4.
Answer:
1.parts per million is a number of units of mass of contaminants per million unit of total mass.
2. molarity is defined to be the number of moles if solute divided by the number of litres of solution .
3. osmotic is the tendency of fluid (water) to pass through the semipermeable membrane into the solution.
4. reverse osmosis is the process by which the solvent passes through a semipermeable membrane in the opposite direction to that original osmosis .