Motin MA, Kabir MH, Huque EM. Densities and excess molar volumes of formic acid, acetic acid and propionic acid in pure water and in water + Surf Excel solutions at different temperatures. Phys Chem Liq. 2005;43(3):277–88.
How many moles are there in 197 grams of pure copper metal? What is the molar mass of (NH4)2O? Calculate molar mass for: a.) aluminum sulfate. b.) iron (II) nitrate. c.) calcium tartarate. d.) cobalt (II) chlorate. Assume that heating a 3.50g sample of the hydrate of copper...
(22.56 mmo1) were added to l5 mL of a glacial acetic acid solvent,to which 6 mL(58.2 mmo1) of H20 2[30%(mass frac- tion)] was added dropwise within 60 min under stirring(600 r/min).A ti er all H,0 ,was added,the reaction mixture was ...
Ltd. and pure water was from Watsons, and the details of the chemicals with their CAS number, purification method, mass fraction purity were all given in Table 1. Table 1. The details of the chemicals. Chemical NameCAS No.SourcePurificationMethodMass FractionPurity,water (KF)% N-...
(ref. 44), respectively, mass balance consideration requires that d13C of HCO3À derived from methanogenesis be þ 150% based on equations (3) and (4). Our calculation shows that MT microspar precipitation at 100 m water depth would be B1% heavier than host rock (black solid line in...
To find molar concentration we need to know the amount of substance and the total volume of the solution. To determine the amount of the substance we could use the molecular formula for this substance and information about the mass of this substance that is present in the solution. In...
Hence, the sensitive and rapid determination of these pollutants is significantly important. In this regard, many research groups were trying to develop new detection methods with high reliability, sensitivity and selectivity3. So far, several techniques such as gas chromatography-mass spectroscopy (GC...
Briefly explain how each of the following errors in the experimental procedure would affect the calculated mass percent Co in the analyzed sample of cobalt (II) nitrate. A malfunctioning spectrometer If your experimental Ka is 5.3 and the actual Ka of your ...
Filtrates of MFC were analyzed for hydroxycarboxylic acids, sugars and other non-volatile hydroxy compounds by gas chromatography mass spectrometry (GC/MS), for formic and acetic acids by capillary electrophoresis (CE) and for furfural and its 5-hydroxymethyl derivative by liquid chromatography (HPLC...
Abstract: Method for producing polyacrylate adhesive compounds with a narrow molar mass distribution by radical polymerization and subsequent decolorization of colored reaction products resulting therefrom. Inventors: Prenzel, Alexander (Hamburg, DE)