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What was the initial energy level of an electron if it was excited by a photon of wavelength 38.9µm and jumped to an energy level of 10?
What is the molar mass of a covalent compound if 0.486 g of it is dissolved in 25.0 mL of water and produces a freezing temperature
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.15 M buffer solution at pH 5.0?
Carbonic acid is an intermediate step in the transport of CO2out of body. If the pH of blood is 7.4, what percent is carbonic
Question- Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins. Detail the significance of this structure, how it may be modified, and the results of such modification.
When a compound containing censium ion is heated in a bunsen burner flame,photons with an energy of 4.30x 10-19 J are emitted, Explain the color of the censium flame
Which reaction occurs at the cathode of an electrolytic cell containing a mixture of molten KCl and ZnCl2
How long will it take for 100% pearlite to form at 650 °C and at 600 °C? Estimate the hardness values resulting from these transformations.
determine the °rxn (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HCl. Assume that all of the heat that goes into the water is from the reaction and that no heat is lost to the calorimeter or the surroundings. A..
Calculate the theoretical yield of C2H5Cl when 124 g of C2H6 reacts with 219 g of Cl2 , assuming that C2H6 and Cl2 react only to form C2H6Cl and HCl.
Insert your drawing of the dot structures from the whiteboard. Save this document and submit to the Journal: Dot Structures for Atoms and Simple Ions assignment.
A Fraunhofer diffraction pattern is produced from a light sourced of wavelength 580 nm. The light goes through a single slit and onto a screen 1.0 m away. The first dark fringe is 5.0 mm from the central bright fringe. What is the slit width
how would you distinguish between methyl benzoate and phenylacetic acid using 1h nmr
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