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A reaction that is first order in A has a rate constant of 0.72/min If the initial concentration of A is 1.60 M, what is the concentration after one minute?
Aliquots of a 0.5-mg/mL standard of BSA are used to construct a standard curve for the Bradford protein assay. The tubes contain the following amounts of the BSA solution: 0, 20, 40, 60, 80, and 100 µL.
water is added to 25.0 ml of .716 mkno3 solution until the volume of the solution is exactly 500 ml. what is the
HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base.
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant fo..
The density of chloroform, a widely used organic solvent, is 1.4832 at 20 . How many milliliters would you use if you wanted 119.0 of chloroform.
A mixture of ethanol and 1-proponol behaves ideally at 36 degrees celcius and is in equillibrium with its vapor. If the mole fraction of ethanol in the solution 0.49, calculate the mole fraction in the vapor phase at this temperature.
If the height of the mercury column in the leveling bulb is 30mm greater than that in the gas buret and the atmospheric pressure is 670 mm, what is the pressure on the gas trapped in the buret?
How many milliliters of a 0.20 M glucose C6H12O6 solution are needed to provide a total of 25.0 g of glucose?
determine the value of work w when a piston of volume 0.2 litres expands against an external pressure of 200 kpa to a
What mass of NaOH is needed to precipitate the Cd2+ ions from 48.0 mL of 0.500 M Cd(NO3)2 solution?
An old synthetic procedure starts by calling for fifteen kilo grams of sulfuric acid. If your largest reaction vessel holds ten litres, can you put the fifteen kilograms of acid into the vessel, or would you require to scale down the reaction reag..
Consider a waterbody at that temperature containing 7.0 mg l-1 oxygen. By photosynthesis, 1.5 mg of carbon (as carbon dioxide) is converted to biomass (CH3O) during a single hot day.
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