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An atomic emission spectrum of hydrogen shows the following three wavelengths: 121.5 {\rm nm}, 102.6 {\rm nm}, and 97.23 {\rm nm}. Assign these wavelengths to transitions in the hydrogen atom
What would be the speed of the following particles if they had the same wavelength as a photon of red light (? = 750.0 nm)
a 1.95 g sample of ascorbic acid is titrated with a 0.89 M red dye. What volume of red dye is required to reach the endpoint
Calculate the standard cell potential for Mg(s) + Fe2+(aq)--->Mg2+ + Fe(s) Express the standard potential numerically in volts.
STP corresponded to conditions of "standard" temperature (T=0°C) and standard pressure (p= 1 atm). At STP, 1 L of Br2 reacts totally with 3 L of F2 to form 2 L of a product. What is the formula of the product?
What is the pH of a sulfadiazine sodium solution containing 0.5 M of the drug in 1000 mL of solution?
Calculate the number of atoms in 0.406 g of potassium (K). Enter your answer in scientific notation.
What is the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 7.40 atm. The Henry's law constant for ammonia gas at 298 K is 58.0 M/atm.
Given a standard Gibbs-free energy of 45.5 kJ/mol, what is the value of its equilibrium constant. Suppose a reaction has a standard Gibbs-free energy of -2.54 kJ/mol, calculate the relative ratio of product to reactant.product : reactant
What is the principle quantum number for the inner transition metals? (the atomic numbers are 57 through 102, called the lanthanide series
The visible part of the hydrogen atom spectrum is called the Balmer series (n1 = 2). The violet line has a wavelength of 410.2 nm.
succinate dehydrogenase produces approximately 1.5 ATPs for each succinate oxidized. electrons passing down the electron transport system from succinate dehydrogenase pass through all of the following EXCEPT
Consider the following reaction. N2 + 3H2 -> 2NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
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