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Calculate the change in pH that occurs when 1.00 mmol of a strong acid is added to 100 mL of 0.0500 M CH3COOH
when an intense beam of green light is directed onto a copper surface, no electrons are ejected. What will happen if the green light is replaced with red light
Explain why selectivity in isocratic HPLC system ideally should not depend on eluent composition. (Use thermodynamic derivation to support your explanation).
In a titration experiment, 50.0 mL of 0.375 M HI solution is required to neutralize 35.0 mL of Ca(OH)2 solution. What is the concentration of the Ca(OH)2 solution?
Complete and balance the following redox equation using the smallest whole-number coefficients. Show the steps. Sn (s) + HNO3 --> SnO2 (s) + NO2 + H2O (not balanced, assume acidic solution)
Write a complete mathematical model for a closed system consisting of water only at equilibrium. Be sure to include starting materials, a species list, equilibria (if any), mass balance (if any), a charge balance equation, and other constraints
determine the maximum number of coordination sites that the ligand can occupy on a single metal ion.
a)A 10.0 g sample of a mixture of methane (CH4) and ethane (C2H4) reacts with oxygen at 25C and 1 atm to produce carbon dioxide and water (liquid). If the reaction produces 520 kJ of heat, what is the mass percentage of methane in the mixture?
A mole of hydrogen gas was found to have an average De Broglie's wavelength of 1A (10^-10m), the approximate length of the H-H bond. What temperature is the gas kept at
The lower flammability limit (LFL) for a gas is the minimum concentration of the gas, in air, below which there is too little fuel to support combustion.
Hydrogenation of carbon double bonds C=C (i.e. adding a hydrogen on each carbon atom and thus reducing the double bond into a single bond: H-C-C-H) is a very common process in organic and polymer chemistry
the Redlich-Kwong equation to calculate the value of the pressure of one mole of ethane at 400.0K confined to a volume of 83.26 cm^3. The experimental value is 400 bar.
You have proven sulfanilamide is capable of forming a stable and selective crystal lattice. Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective cry..
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