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What is radioactivity and state there economical importance in a country
assuming 100 dissociationa calculate the molar concentration of h ions in a solution made by diluting 25 ml of 0.1 m
What is the vapor pressure of isopropanol at 200 C if its molar volume calculated by a first order virial expression
What mass of Fe would be contained in a 80.0 g sample of magnetite ore that is 76.0% Fe3O4. Assume no other form of Fe is present
Choose one of the following atmospheric issues: air pollution, global warming, ozone depletion, and acid deposition. Then, respond to the following,
The Haber process is an important reaction for the fixation of nitrogen, nitrogen is converted into ammonia, an important component in the production fertilizers. N2(g) + 3H2 = 2NH3(g) + 22,000cal
Explain how the methylcyclohexene(s) can be distilled from the reaction mixture if the distillation temperature is kept below 100 degrees C.
Problem- What is the potential of a cell made of Zn / Zn+2 and Cu / Cu+2 half cells at 25 C, if Z+2 = 0.31 M and Cu+2= 0.81 M
A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 67 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 24 s for 1.0 L of O2 gas to effu..
Calculate the pH of the following solutions: 1.) 0.100 moles of HF and 0.120 moles of NaF in a 1.00 liter solution.--- 2.) a solution that has 0.10M NH4NO3 and 0.10 M NH3.--- 3.)0.100 moles of HF and 0.200 moles of NaCN in 1.00 liter solution.
what is the oxidation number of the specified element in each compound or polyatomic ion: a)C in ZnCO3 b)Fe i Fe(NO3)2 c)Cl in ClF4^- d)S in S2O3^2-
Calculate the pH of a 0.130 M solution of aniline C6H5NH2. The Kb of aniline is 4.30 x 10-10.
Explain Gibbs-Duhem Equation, In a certain binary solution, the activity of component 1 is given by
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