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Problem- A volume of 203 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr and the temperature is 25°C. Calculate the atomic mass of the metal.
Illustrate structures to prove your interpretation.
Compute the mass of one atom of helium (atomic mass = 1.01 amu). Compute the wavelength of this atom if it is traveling at 0.8 c
what is the [OH-] concentration of a solution that is 0.225 M in Na2CrO4(i.e., the sodium salt of chromic acid)
According to Raoult's law, which statement is false?
How much heat is required to take a 15.0 g sample of ice with an initial temperature of 0.00oC and raise it to a final temperature of 75.0 oC.
Question- Combustion of 5.000g of an unknown hydrocarbon resulted in 15.14g of CO2 and 7.751g of H2O. What is the empirical formula of this compound
Discuss the typical features of a calomel electrode and a silver - silver chloride electrode. What are their standard half cell potentials?
The molar heat of vaporization of benzene at 1atm is 30.8kJ/mol. The boiling point of benzene at 1atm is 78.3C. Calculate the entropy change when 11.5g if benzene boils at this temperature
Where n is the quantum number with possible values of 1, 2.... as well as v is the frequency of vibration. The vibration frequency of HCL is approximately 8.85 *1013s-1. Explain what minimum energy is required to excite a vibration in HCL
explain the hazards associated with 1.0M CH3COOH solution, 0.10M BaCl2 solution and 0.10M Na2C2O4 solution.
The rate constant for a reaction increases by a factor of 1.41 when the temperature is increased from 20 °C to 27 °C. What is the activation energy of the reaction
Compute the electrode potential of hydrogen electrode at standard temperature if the electrode is immersed into acidic solution with pH = 2.85 and the partial pressure of hydrogen gas p(H2) = 0.73 atm.
What is the vapor pressure of each of the solution components in the mixture? What is the total pressure above the solution?
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