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If 27.0 mL of 0.0200 M KMnO4 were required to titrate a 0.425 g sample of K3[Fe(C2O4)3] * 3H2O, what is the % purity of the complex
Write the structures of all the alkenes that can be formed by dehydrohalogenation of each of the following alkyl halides.
Indicate the hybridization for each carbon and nitrogen atom in this molecule, then draw an orbital overlap picture for the molecule.
Write an orbital diagram for the ground state of the Calcium atom. Is this atomic substance diamagnetic or paramagnetic
Car manufacturers are developing engines that use H2 as fuel. In locations where hydroelectric plants produce inexpensive electric power, the H2 can be made industrially by the electrolysis of water.
How many grams and pounds of washing soda are needed to remove the hardness from 500 gallons of water that has a hardness of 150 ppm CaCO3?
If the heat of combustion for a specific compound is -1360.0 kJ/mol and its molar mass is 82.03 g/mol, how many grams of this compound must
Heat evolved per mole of Mg 6) Change in enthalpy for the following specific reaction. Be sure to indicate the correct sign (- or +) for the change in enthalpy. Mg(s) + 2H(aq)===>Mg(aq)+H2(g)
What is the molarity of a calcium hydroxide solution if a 25.0 mL sample is exaclty neutralized by 42.5 mL of 0.0750 M nitric acid?
During the initial stages of method development, the researcher was unable to separate anthracene and naphthalene with baseline resolution. From the options below, select all possible modifications the researcher could make to improve the resoluti..
Its volume in the liquid state is 1.00 cm3 and its volume in the vapour state is 1671 cm3. Find the work done by expansion due to evaporation and the change of internal energy of the system.
A typical popcorn kernel has a volume of .250 mL and contains 1.114 mg of water. The kernel will pop at a temperature of 170 C. What is the pressure in atm inside the kernel right before it explodes?
Calculate the equilibrium concentrations for all species: B. Calculate the value of the equilibrium constant, K.
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