Dissolving 120 g of urea (molecular mass = 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is :
Dissolving 120g of urea (mol wt =60) in 1000g of water gave a solution of density 1.15 g/mL. The molarity of the solution is A1.78 M B2.00 M C2.05 M D2.22 MSubmit Dissolving 120 g of urea (molecular mass = 60) in 1000 g of water gave a solution of density 1.15 g/mL. The...
Homogeneous modification of chitosanThe novel solvent (0.25 M KOH/0.01 M urea alkaline solution) was used to successfully dissolve chitosan without freezing-thawing cycles, for the first time. The results from XRD, FTIR, and (CNRM)-C-13 proved that KOH/urea solution could destroy the hydrogen ...
1.13. Salient characteristics of FDDDS (Fast Dissolving Dosage Forms)34 1.14. Techniques for preparing FDTs35 1.15. Sublimation36 This process includes incorporating some inert volatile ingredients such as urethane, urea, naphthalene, camphor, etc. and other excipients which was compressed into the ta...
g. melting the dried, polymer/dye co-precipitate within a polymer compounder to create a solid solution; and h. converting the solid solution into a physical form; and wherein the step of melting is monitored spectroscopically, using one of the following techniques: a. ultraviolet-visible...
(Holding et al.2014,2016,2017,2018; Pena et al.2019), we observed that the pre-treatment of three different kraft pulps with pure [P4444][OAc] at 120 °C did not dissolve the material, but rather the material became partially swollen during the IL pre-treatment. After washing away the...