Molecular weight of salt

Iron and silver are elements, and are made up of atoms. Sodium chloride (table salt) and sucrose (cane sugar), on the other hand, are compounds, and are made up of molecules. Nevertheless, the mole still works a mole of salt or sugar means 6.02 X 10 molecules of them. The molecular weights of salt and sugar are 58.45 and 342.3, respectively. Thus, 2.05 oz (58.45 g) of salt and 11.98 oz (342.3 g) of sugar contain the same number of molecules 6.02 X 10. ... 

Weight of salt x Valence of ion x 1000 Molecular weight of salt... 

Information you may find useful Molecular weight of salt = 851 g mol and its density is 3g/cm ... 

Fig. 8. The discharge capacitance of EDLCs containing various electrolytes. The test cell was discharged at a constant current I = 0.2 A from V = 3.0 to 0 V at 25 °C. Cell capacitance is plotted against the molecular weight of salts, cations and anions for (a), (b) and (c), respectively. The electrolyte concentration was IM in PG ( ) DEME-cation sp>ecies ( ) MEMP-cation species (A) DEMM-cation sp>ecies (x) MMTM-cation species ( ) MMMP-cation species ( ) EMI-cation species in figure (a) and (c). In figure (b) ( ) BFfanion species ( ), PFe-anion species (A) TFSI-anion species. The ptrepared EDLC with IM DEME-BF4 in PC had 44 F g-i of the sp>ecific cap>acitance p>er electrode weight.

Asphalt makes up the residue of the deasphalting operation and concentrates the major portion of the impurities such as metals, sediment, 1 salts and asphaltenes. Asphalt fluidity decreases as the molecular weight of... 

I. Molecular Weight of Acids by Analysis of Silver Salts. 

The Molecular weight of the acid itself is clearly equal to that of the silver salt minus the atomic weight of sih er plus the weight of hydrogen displaced by G X 107-9 ... 

When an amine, or a solution of its hydrochloride, is added to an aqueous solution of chloroplatinic acid, a salt of the base with the cliloroplatinic acid, of general formula BjiHiPtCle (where B is one molecule of the base) is formed and usually crystallises out, for these chloroplatinates hai e normally a rather low solubility in cold water. The chloroplatinate can be filtered off, dried, and then analysed by direct ignition, when only the metallic platinum ultimately remains. Knowing the percentage of platinum in the chloroplatinate, the molecular weight of the latter, and hence of the constituent base, can readily be calculated. 

The method can therefore be used to estimate the percentage of aniline hydrochloride in a crude sample, provided the impurities are not themselves salts of other similar amines. Alternatively, if aniline is known to be a monacidic base (forming therefore a mono-hydrochloride) the molecular weight of aniline can be determined, since the molecular weight of the aniline hydrochloride is clearly that weight which is neutralised by 1000 ml. of vl/.NaOH solution. 

It is important that the solution of the sodium salt be faintly acid in order that the formation of coloured by-products in the subsequent reaction may be prevented. If the molecular weight of the monobasic acid is known, it is desirable to employ a slight excess of the sodium salt, since excess of the latter is more easily removed than the unchanged reagent. 

To a solution of 0-5 g. of the salt in 5 ml. of water and 2-3 drops of O li hydrochloric acid (or to a solution of the acid treated as above), add a shght excess of a cold, 15 per cent, aqueous solution of benzyl-wo-thiourea hydrochloride (if the molecular weight of the compound is not known, use a solution of 1 g. of the reagent in 5 ml. of water), and cool in ice. Filter off the crystaUine derivative and recrystaUise it from 50 per cent, alcohol. 

Gum ghatti is the calcium and magnesium salt of a complex polysaccharide which contains L-arabinose, D-galactose, D-mannose, and D-xylose and D-glucuronic acid (48) and has a molecular weight of approximately 12,000. On dispersion in water, gum ghatti forms viscous solutions of viscosity intermediate between those of gum arabic and gum karaya. These dispersions have emulsification and adhesive properties equivalent to or superior to those described for gum arabic. 

Molecular weights of polymers that function as bridging agents between particles are ca 10 —10. Ionic copolymers of acrylamide are the most significant commercially (see Acrylamide POLYMERS). Cationic comonomers include (2-methacryloyloxyethyl)trimethylammonium salts, diethyl aminoethyl methacrylate [105-16-8], and dimethyldiallylammonium chloride [7398-69-8], anionic comonomers include acryUc acid [79-10-7] and its salts. Both types of polyacrylamides, but especially the anionic, can be more effective in the presence of alum (10,11). Polyetbylenimine and vinylpyridine polymers, eg, po1y(1,2-dimethy1-5-viny1pyridiniiim methyl sulfa te) [27056-62-8] are effective but are used less frequentiy. 

Ammonium perchlorate is a colorless, crystalline compound having a density of 1.95 g/mL and a molecular weight of 117.5. It is prepared by a double displacement reaction between sodium perchlorate and ammonium chloride, and is crystallized from water as the anhydrous salt. 

Polymer Production. Three processes are used to produce nylon-6,6. Two of these start with nylon-6,6 salt, a combination of adipic acid and hexamethylenediamine in water they are the batch or autoclave process and the continuous polymerisation process. The third, the soHd-phase polymerisation process, starts with low molecular weight pellets usually made via the autoclave process, and continues to build the molecular weight of the polymer in a heated inert gas, the temperature of which never reaches the melting point of the polymer. 

Gum-Saline. Gum is a galactoso—gluconic acid having molecular weight of approximately 1500. First used (16) in kidney perfusion experiments, gum—saline enjoyed great popularity as a plasma expander starting from the end of World War I. The aggregation state of gum depends on concentration, pH, salts, and temperature, and its coUoid oncotic pressure and viscosity are quite variable. Conditions were identified (17) under which the viscosity would be the same as that of whole blood. 

If IV IS the weight of salt, 7u the weight of silver, and n the basicity of the acid, the molecular weight of the silver salt is determined from the following formula —... 

The organic bases form, like ammonia, crystalline chloroplati-nates with platinic chloride of the general formula BoH,j,PtCl,). By estimating the amount of platinum present in the salt, it is possible to calculate the molecular weight of the platinum compound, and consequently that of the base. 

The molecular weight of the salt is calculated fiom the weight w of the platinum, and IV of the salt, accoidmg to the foiniula (the atomic weight of platinum being 195)... 

To deteiniine fiom this the weight of the base, it is necessary to deduct fiom the molecular weight of the salt that of H2PtClg, and as two molecules of the base are contained in the salt, the result is halved. 

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