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In a particular analysis the selectivity coefficeint K,A,I is 0.816. When a standad sample known to contain an anaylyte to interferent ratio of 5:1 is carried through the analysis, the error in determining the analyte is +6.3%. (a) Determine the appartent recovery for the analyte if R1=0. (b) deter,ome the apparent recovery for the interferent if Ra=1.
The precipitate was filtered, dried, and weighed. A total of 1.55 g calcium flouride was collected. What was the percentage of CsF in the original sample.
The appropriate chemical equation is PCl3(g)+Cl2(g) PCl2 Calculate the new partial pressures after equilibrium is reestablished.
A gas sample has an original volume of 760 ml when collected at 720 mm and 25degC. What will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 30degC?
Chemicals available for extractions: CH2CL2, 1M NaOH, 1M HCL and sodium sulfate for drying, Chemicals available for crystallization: ethyl ether, 95% ethanol, methanol, isopropyl alcohol, acetone, hexane, toluene and methylene chloride.
Chemical analysis of the two compounds reveals that 0.25 mol ACl 2 has a mass of 100.0 g and 0.50 mol BCl 2 has a mass of 125.0 g. Determine what are the molar masses of ACl 2 and BCl 2 ?
a sample of gas occupies 328 mL at 20 degrees C. What is its volume when the temperature is increased to 45 degrees C.
What would be the predicted effect on glutamine synthesis if a mutation is glutamine synthetase increases the Km to the micromolar range for the regulatory protein Pa but has no effect on the Km
Calculate the number of molecules inside the cell, which is 2.2 ?m long and 1.2 ?m in diameter.
What types of intermolecular forces would you expect to exist among molecules of 1-butanol?
What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0 degrees celsius to 40 degrees celsius?
minor component that can be hydrolyzed to yield eugenol and acetic acid. What is the structure of the minor component, which has the molecular formula C12H14O3
32.5 kJ/mol°GD Muscles are powered by the hydrolysis of Adenosine tri phosphate determine Keq for this reaction
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