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Suppose you have a cube of copper metal that is 0.236cm on a side with a mass of 0.1206 g. If you know that each copper atom (radius = 128 pm) has a mass of 1.055 x 10^-22, how many atoms are there in this cube? What fraction of the cube is filled with atoms? Why is there "empty" space in the lattice?
Two beakers containings different buffer solutions of lactic acid/lactate (CH3CHOHCO2H/CH3CHOHCO2- or LacH/Lac-) and quinhydrone are prepared.
what is the boiling point of cyclohexane at 600
Fin the mass of AlCl3 that is produced when 25.0 grams of Al2O3 react with HCl according to the following balanced equation
What ions are present in an aqueous solution of NaOH. What ions are present in an aqueous solution of NiCl2
The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 x 10-3 min- 1. How long will it take for the concentration
calculate the molarity and mole fraction of acetone in a 1.82 molality solution of acetone in ethanol. density of
Estimate the heat released when ethene CH2 CH2 reacts with hydrogen gas to give CH3CH3.
Octane has a density of 0.692 g/mL at 20 Celsius . How many grams of O2 are required to burn 1.30 gal of C8H18
a reaction has a rate law rate kab2. what is the overall order of the
Need to analyze a mixture of alkanes
The use of high salts, e.g. "salting out" is a common technique used during protein purification. Describe the chemical process underlying this method.
Outline a complet mechanistic sequence for the reaction of 2-bromoheptane with potassium 2-methyl-2-propoxide in 2-methyly-2-propanol solvent to form the three alkenes generated in the reaction
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