Show the calculation for the mass of sucrose needed to make 50 grams of a 5% percent by mass solution of sucrose in water. What mass of a solution labeled 8.7% sucrose (C12H22O11=342 g/mol) by mass contains 11.0 g of sucrose? How many grams of water ...
chromatographic conditions and system suitability test using eighteen alkyl silane bonded silica as filler; Acetonitrile-water (75=25) as mobile phase; The detection wavelength was 210nm; the number of theoretical plates is not less than 2500 based on the calculation of sucrose octaacetate. ...
To simplify this, chemists use the mole which is equal to 6.02×1023 atoms. In the laboratory, chemists will weigh substances using grams. The molar mass or molecular weight of a substance is used to determine how many grams per mole of a substance is needed in a chemical ...
Treatment of the cobalt (II) chelate, formed from sucrose,sodium hydride and cobalt (II) chloride in DMF in the molar ratio of 2:7:1, with 1.3 molarequivalents of acetic anhydride gave sucrose monoacetates in 98% yield. The product wasshown by mass spectrometry and gas chromatography to ...
In order to be able to better compare independent assays, only the sample dilution is used for the calculation which leads to a decrease of the OD650 by 0.5 units during an incubation time of 30 min Definition of an Activity Unit (U) of the Branching Enzyme: The amount of enzymes causing...
Default parameters for pairwise alignments and calculation of percent identity of protein sequences using the Clustal V method are KTUPLE=1, GAP PENALTY=3, WINDOW=5 and DIAGONALS SAVED=5. For nucleic acids these parameters are KTUPLE=2, GAP PENALTY=5, WINDOW=4 and DIAGONALS SAVED=4. After...
Show the calculation for the mass of sucrose needed to make 50 grams of a 5% percent by mass solution of sucrose in water. What mass of a solution labeled 8.7% sucrose (C12H22O11=342 g/mol) by mass contains 11.0 g of sucrose? How many grams of water ...