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What is the wavelength, in nanometers, of the light emitted when the electron in a hydrogen atom drops from the energy level n_i = 12 to n_f = 5
What is the main component of the first eluting peak and what percentage of the total absorbance at 300nm is due to this component?(assuming the light path- length = 1.0 cm)
Lithium has an atomic mass of 6.9409 amu. What is the percent abundance of lithium-6?
3H2 + N2 -> 2NH3. At 200 degrees C in a closed container, 1.00atm of nitrogen gas is mixed with 2.00atm of hydrogen gas. At equilibrium, the total partial pressure is 2.00atm.
suppose the condenser operates as a total condenser at 40 degrees, the production rate of the overhead product is 75kmol/h. The ratio of reflux and overhead product is 1.5:1.
what is the net ionic equation for lead ii nitrate magnesium
A 62g piece of ice at 0 degree celsius is added to a sample of water at 9 degree celsius. All of the ice melts and the temperature of the water decreases to 0degree celsius. How many grams of water were in the sample ?
What is the partial pressure of each gas and total pressure of the mixture of gaases, in atmospheres, in the container?
The molar mass for NaCl and water are 58.443 g/mol and 18.015 g/mol, respectively. Calculate the partial molar volumes for NaCl and water in a 0.35m solution
Metal A was determined to be 95% extracted into methylene chloride with dethizone at pH6, when equal volumes of aqueous and non-aqueous solvents were used. what is the distribution ratio of A
in the barium chloride laboratory activity what change occurred in the physical appearance of the barium chloride
Hydrogen reacts in a fuel cell to produce water and electricity according to the reaction below. What is the maximum amount of electricity you might derive from 7.50 g of hydrogen
considering the given equation as p4 s h2g --gt ph3g balance this chemical equation and determine how many grams
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