2014年4月2日 · You can use filtration to separate a mixture of a solid in a liquid or a solid in a gas. Filtration is a separation process in which a mixture is passed through a filter that allows one component to pass through uninhibited but blocks another component from passing through. In general this method sorts by size, with the filter acting as a barrier that allows smaller particles …

2015年12月2日 · Diffusion is the movement of one specific molecule from a high concentration area to a low concentration one. Filtration is the movement of a fluid (mixture of several molecules) from a region of high pressure to a region of a low pressure.

2015年11月4日 · The hydrophobic tails of the phospholipids prevent the polar molecules to pass in the cell or substances like glucose and proteins to pass out of the cell. The big molecules are also restricted to pass through the bilayer. However, these restricted molecules pass in or out via membrane proteins in a managed way.

What is the difference between gravity filtration and vacuum filtration? When should vacuum filtration be used? What is the difference between copper (II) sulphate trihydrate, copper (II) sulphate pentahydrate, and anhydrous copper (II) sulphate?

2016年9月20日 · The main function of the glomerulus is to filter plasma and produce glomerular filtrate , which passes through the length of the nephron tubule to form urine. Urine formation begins with glomerular filtration, which is a non selective process in which fluids and solutes are forced through a membrane by hydrostatic pressure. The factors determining the permeability …

mixtures can be separated using various separation methods such filtration,separating funnel,sublimation,simple distillation and paper chromatography. The methods stated above are all physical methods. There are also chemical methods, which are used by rearranging the particles so a certain substance no longer exists (chemical reaction).

2018年3月6日 · small volume of liquid left in beaker or filter paper Filter paper (if that's what you used) "traps" and could have evaporated some fluid in it. So not all your fluid was collected in the filtrate which means the mass would be smaller. You could also argue that when tilting the beaker, there's always those tiny little droplets left behind in the beaker since they stick to the wallls, …

2015年9月21日 · See below. > Filtration is the separation of a solid from a fluid by passing the mixture through a medium through which only the fluid can pass. In gravity filtration, a suspension of a solid in a liquid is allowed to flow by gravity through a porous medium such as a filter paper. The liquid passes through the pores in the paper, and the solid is retained on the paper. …

2017年12月22日 · Not easily but it depends on the type of colloid. If you have a solid in liquid colloid, then it is not possible to separate it by filtration using conventional filter papers as even using the smallest pore size paper you are only just about reaching the maximum particle size of a colloid. Colloids have particle sizes between 1 and 1000 nm (0.001 - 1.0 mum) and the finest …

2018年3月8日 · Filtration, reabsorption, and secretion. I'm going to infer that 'briedly' is a mistyped 'briefly.' So, here you go: There are actually three main processes to the kidneys, take from each what you like to help answer your question. Filtration, reabsorption, and secretion. Filtration: Filtering masses of water and solutes out of the plasma in blood. This process is driven by …