I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
refers to concentration in terms of moles per litre of solution, whereas osmolality refers to concentration in terms of moles per kilogram of . For dilute , however, they are numerically almost the same.
Osmolarity is the number of osmoles per litre of solution.Osmolality is the number of osmoles per kilogram of solvent.
Calculate the osmolarity and the osmolality of a solution of
0.850 g of NaCl in 100.0 mL of water. The of the solution is
0.850 g NaCl × ##(1″ mol NaCl”)/(58.44″ g NaCl”)## = 0.0145 mol NaCl.
In solution, 1 mol NaCl forms 1 mol Na⁺ + 1 mol Cl⁻= 2 mol particles, so 1 mol NaCl = 2 Osm
0.0145 mol NaCl × ##(2″ Osm”)/(1″ mol NaCl”)## = 0.0291 Osm
Osmolarity = osmoles/litres = ##(0.0291″ Osm”)/(0.100″ L”)## = 0.291 Osm/L or
Mass of solution = 100.0 mL × ##(1.005″ g”)/(1″ mL”)## = 100.5 g
Mass of solvent = (100.5 – 0.850) g = 99.6 g
Osmolality = ##”osmoles”https://studydaddy.com/”kg solvent” = (0.0291″ Osm”)/(0.0996″ kg”)## = 0.292 Osm/kg or 292 mOsm/kg
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more