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16 / 120 * 100% = 13.3% (w/w)

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What is the isotonic solution for Urea?

The isotonic solution for Urea would be a solution that has the same osmotic pressure as a cell. This concentration would typically be around 0.15 M for Urea.


Why one molal solution of urea is dilute as compare to one molar solution of urea?

A one molal solution of urea contains one mole of urea dissolved in one kilogram of solvent (usually water), while a one molar solution contains one mole of urea dissolved in one liter of solution. Since the density of the solution can vary, a one molal solution typically has a lower concentration of urea in terms of volume compared to a one molar solution, making it more dilute. This is because the molarity takes into account the total volume of the solution, while molality focuses only on the mass of the solvent.


Which part of the nephron contains lowest concentration of urea?

filtration


Which structure contains the lowest concentration of urea?

The structure that contains the lowest concentration of urea is typically the renal cortex of the kidney. In the nephron, as filtrate passes through the renal corpuscle and into the proximal convoluted tubule, a significant amount of urea is reabsorbed, leading to lower concentrations in these areas compared to the medulla and collecting ducts, where urea concentration increases due to water reabsorption.


Is urea osmotically active?

Yes, urea is considered to be osmotically active. It can contribute to the osmotic pressure of a solution by attracting water molecules and affecting the overall concentration of solutes.


Which part of nephron contains more and less amount of glucose and urea?

The proximal convoluted tubule of the nephron contains the highest concentration of glucose, as it is the primary site for glucose reabsorption from the filtrate back into the bloodstream. Conversely, the concentration of urea is higher in the distal convoluted tubule and collecting duct, as these segments are involved in the secretion and concentration of waste products, including urea. Thus, glucose is abundant in the proximal convoluted tubule, while urea is more concentrated in the latter parts of the nephron.


What in urine?

Urine is a solution of metabolic wastes that contains urea, salts, and many different organic compounds.


How you can determine urea concentration by classical titration?

use the non aqueous titration dissolved urea in glacial acetic acid, and titrate with standard 0.1 mol/L trifluoromethanesulfonic acid in acetic acid using isobutyl vinyl ether as a thermometric endpoint indicator


Which structure contains the hihest concentration of urea in humans?

The bladder, depending on the amount of water in your body. The kidneys filter urea and other waste products out of the blood and send them down the ureter to the bladder in the form of urine. Kidneys dont have the greatest concentration as the urea moves continuously through the loop of henle and into the bladder where it is collected.


Why does the red blood cell lyse in an isosmotic solution of urea?

Urea is isosmotic to the intracellular fluid of red blood cells, but because the membranes of the blood cells are permeable to urea. Urea enters the cell at a much more rapid rate than other permeable solutes (because of the steep concentration gradient) and the cell fills to it bursts.


A 5 percent urea solution is hypotonic to a 10 percent urea solution?

true


Why is it important that the concentration of urea is kept very low in the dialysis fluid?

the concentration of urea should be kept low in the dialysis fluid because urea is harmful for our body if it is not removed.