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Discuss the concentration of cations in the solution copper sulphate and zinc sulphate.
A student prepared a stock solution by dissolving 20.0 grams of KOH in enough water to make 150 mL of solution. SHe then took 15.0 mL of the stock solution and diluted it with enough water to make 65.0 mL of a final solution. What is the concentra..
According to the laws of probability, the chance of two independent events occurring simultaneously is which of the following: (a) the sum of the individual probabilities, or (b) the product of the individual probabilities
Insert a stick in each hole of a model carbon atom and mentally draw imaginary lines between the ends of the sticks.
A solution of this complex in a 1 cm cuvette had an absorbance of0.760 at this wavelength. Calculate the molarity of this solution.
When relatively small amounts of magnesium burns, the fires are extinguished using commercially available dry powder. Why might this fire rekindle days later as someone tries to remove the residue with water?
Calculate the grams of HCl that must be diluted to a volume of 1 liter to produce a concentration of 0.5M. Calculate the normality of 1 L of solution containing 45grams of NaOH.
the si unit of length is the meter which is defined as thelength equal to 1650763.73 wavelengths of the light emmitted
A sheet of aluminum(Al0) foil has a total area of 1.000ft2 and a mass of 3.276g. What is the thickness of the foil in millimeters. (Density of Al=2.699 g/cm3)
Express the concentration of a 0.0860 M aqueous solution of fluoride, F-, in mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL.
A gas-filled balloon having a volume of 2.50 L at 1.2 bar and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final v..
Using a flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N mean the group is attached to the nitrogen of the amine and m-nitrophenol. Specify the organic solvent and aqueous soluti..
The structure of olivine [M2SiO4(whare M=Mg,Fe)] can be viewed as a ccp arrangment of oxide ions with Si(IV) in tetrahedral goles and the metal ions in octahedral holes
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