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Tetradecane and hexadecane were separated in a capillary column, with retention times of 3.529 and 6.955 minutes and base widths (Wb) of 58s and 1.4 min, respectively. An un-retained air peak occurs at 30s. Calculate the column resolution and the capacity factor for hexadecane.
gaseous germane reacts according to the balanced equation. if a total of 5240 kj of heat is produced in the reaction as
The overall Kf for the complex ion Ag(NH3)2+ is 1.7x10^7. Ksp for AgI is 1.5x10-16. What is the molar solubility of AgI in an aqueous NH3 solution (Kb=1.8x10-5) with a pH of 12
Calculate the temperature change which will be caused by the following process: 0.640 moles of NH4Cl are dissolved in 1.00 L of water.
Calculate the pH and the concentrations of all species present H3O+, F-, HF, Cl-, OH- in a solution that contains 0.10 M HF Ka = 3.5*10^-4 and 0.10 M HCl.
154 g of water at 80.0°C are mixed with 78.1 g of water at 23.0°C. If no heat is lost to the surroundings, what is the final temperature of the water. The specific heat of water is 4.184 J/g·°C.
The great escape puzzle. Capture the ions and put them back into their jars. There are 8 jars. Label each jar with the formula of the compound containing the captured ions.
How many kilograms of sodium fluoride would be needed to treat an 8.25x10^7 gal reservior?
Compounds are always composed of two or more elements. Atoms of different elements are different. Isotopes have the same number of protons but a different number of neutrons.
Why is it necessary to use relatively exotic reagents to form precipitates with the Lithium group ions
When potassium hydroxide runs out and we have to use potassium carbonate instead. Will potassium carbonate be a good titrant to use for selective precipitation?
Magnesium metal is used as a sacrificial anode to reduce the corrosion of underground storage tanks (made of iron, more accurately steel). As a result the sacrifical metal corrodes instead of iron. Explain
How many milliliters of a 0.40% (w/v) solution of nalorphine must be injected to obtain a dose of 1.5mg
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