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What is the mass (in g) of a cube of aluminum (density = 2.702 g/mL) with an edge length of 0.27 feet?
10 grams of potassium chlorate (KClO3) is heated and decomposed, what mass of oxygen gas will be formed?
Find the mass in grams of PbCl2 in the products. In a test tube you have 1.0 mL of 0.10 M of NaCl mixed with 1.0 mL of 0.10M of NaCl. 2 NaCl + Pb(NO3)2 --> PbCl2 + 2 NaNO3
How many copper atoms and how many zinc atoms are in the penny provided. You will have to do some research to help with this one
A 28.5 g sample of an unknown metal is heated to 95.0C and then dropped into 58.0 g of water in a coffee-cup calorimeter. The temperature of the water rises from 23.5 C to 27.1C.
Enough Al2(SO4)3 solid is added to water to prepare 100.0 mL of a 0.150 M solution of aluminum sulfate. What is the concentration of sulfate ion in solution?
Draw a Lewis structure of BF that satisfies the octet rule for both atoms
The standard free energy for the neutralization of HCl with NaOH at 25 degrees celsius is -79.9KJ/mol. Calculate the equilibrium constant for the reaction.
Calculate the energy and wavelength associated with an a particle that has fallen through a potential difference of 4.0 V.
Hydrogen sulfide () is a common and troublesome pollutant in industrial wastewaters. One way to remove is to treat the water with chlorine, in which case the following reaction occurs:
A solution of lactic acid, HC3H5O3, on a laboratory shelf was of undetermined concentraton. If the pH of the solution was found to be 2.51, what was the concentration of the lactid acid?
Briefly explain why caffeine will prefer the methylene chloride solvent to the water solvent? draw the structure for all 3 compounds?
Explain why magnetic metals are found only among the 3d and 4f elements. Why are Sc and Ti, which are also 3d elements, diamagnetic?
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