Mass percent = % (m/m) = (grams of solute/grams of solution) x 100. Solution, not solvent so you need to add them. % (15 g / 15 g + 235 g) x 100 = 6.0% Na2CO3. An IV solution is prepared by dissolving 25 g glucose (C6H12O6) in water to make 500 mL solution.
âActivated B cells differentiate into either antibody generating factories called plasma cells that secrete soluble antibody, or into memory cells that survive in the body for years afterwards to allow the immune system to remember an antigen and respond faster upon future exposures.â ~ Wikipedia...
Actually red blood cells do not have the longest life span of circulating blood cells-that would be differentiated memory B lymphocytes.RBCs actually have a relatively short circulating life span (about 4 months on average) because they lose their nuclei and most cellular organelles when they mature. red blood cell's life span is approximately 4 months. I am a Leukemia patient. Red Blood cells are being created all of the time, if they lasted 4 months, we would overdos â¦ e on them.