A galvanic cell using Mg/Mg21 and Cu/Cu21 halfcells operates under standard-state conditions at 25C and each compartment has a volume of 218 mL. The cell delivers 0.22 A for 31.6 h. (a) How many grams of Cu are deposited? (b) What is the [Cu21] remaining?
Biology of the Cell Cell: the smallest & basic unit of a living organism. Cytology is the study of cells. Cell Components & their functions Plasma membrane: outermost layer of cell that surrounds and encloses it to protect the inner environment of the cell from the outer (physical barrier) is selective in what comes in and out of the cell the plasma membrane is composed of a phospholipid bilayer, which helps keep the cytosol (inner cellular fluid) inside the cell. Within the phospholipid bilayer there are lipids called phospholipids that have a head attached with two tails. The head is hydrophilic (water loving) and the two tails are hydrophobic (water fearing). Head faces outer membrane and tails face inner membrane Cholesterol is located in the hydrophobic (water fearing) areas near the tails. Cholesterol strengthens the membrane. Glycolipids are lipids with a carbohydrate attached to them Contain transport proteins that move substances across the plasma membrane, receptors (ligands) that bind with specific molecules, identity markers that let immune cells know that they are normal and apart of the body. Passive Transport does not require energy to transport substances. Diffusion and osmosis are examples of this. Diffusion moves solutes from a high to low concentration. 2 types of diffusion , simple diffusion ( does not need a transport protein to moves solutes) and facilitated diffusion ( does need a transport protein to move solutes). Osmosis is the movement of water from a low to high concentration. Isotonic solution (equilibrium,