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If a person wished to reduce the retention time of a non-polar compound in Reverse phase HPLC, what factors might I change to reduce the non-polar compounds retention time?
Calculate the pH of the following solution: A solution prepared by mixing 10.00 mL of 0.500 M acetic acid with 0.353 g of sodium acetate (NaCH3CO2) and diluting to 250.00 mL
the balanced equation for the combustion of ethanol is2c2h5ohg 7o2g reg 4co2g 6h2oghow many grams of dioxygen are
Calculate the molar solubility of strontium chromate in water at 298 K if Ksp = 3.6 * 10-5.
why is it best to cool the crucible and lid (and sample) in a desiccator rather than on the laboratory bench
edta was used for the aqueous solution titration to determine the amount of calcium ions in the sample. calculate the
NH3 is a weak base (Kb = 1.8 x 10^-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.044 M in NH4CL
while performing the assays for the ldh kinetics experiment you will pipet 10 ul of 250 ugml ldh into 990 ul of assay
A certain gas has a volume of 200 dm3 at 27oC and 2 atmospheres of pressure. What is its volume at STP?
Using extraction techniques how would you separate a mixture of aniline and toluene using dichloromethane as the extraction solvent?
A 20 mg sample of zinc is heated at 10 K min-1, and the peak on the DSC trace has an area of 0.371 W K. Calculate the latent heat of melting of zinc (in kJ mol-1)?
what is the limiting reactant when 4.5 moles of aluminum react with 6.7 moles of oxygen gas?unbalanced equation al o2
Two manufacturing plants need 1.0e4 kg of Al each week. One plant produces the Al from bauxite (Al2O3), whereas the other gets its Al from recycled cans.
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