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The BF3 molecule has a D3h symmetry. Use the character table to derive which vibrational modes are IR active and which are Raman active
if the density of carbon dioxide in air is .65mg/L, what volume is occupied by 25kg of carbon dioxide?
If the final solution has a chloride ion concentration of 1.80M which choice is closest to the concentration of the original SrCl2 solution?
Imagine you want to determine the binding constant for a reaction. You know you will need to generate data to calculate the binding constant.
Descrbe the pH of a buffer soluton consisting of 100mL containing 0.1M CH3COOH and 0.125 CH3COO-, both before and after the additon
what is the frequency of the photons emitted by hydrogen atoms when they undergo transistions from n=5 to n=3
How many milliliters of 1.50 M H2SO4 are needed to neutralize 50.0 g of NaOH?
An unknown sample (0.6855 g) containing KHP is titrated to the equivalence point with 9.75 mL of ).07892 M NaOH, How many moles of KHP present?
A sample containing 0.0250 M concentration of a dye in a cell of 1 cm^2 cross section has a measured absorbance of 1.012 at 650 nm.
Calculate the standard heat of reaction, or for this reaction using the given data. Also consider that the standard enthalpy of the formation of elements in their pure form is considered to be zero.
Consider a chromatogram containing a single analyte with retention time of 4 minutes. The mobile phase elution time is 0.2 minutes. What is the capacity factor (k') for the analyte in question?
use curved arrows to show the flow of electrons in each step, and note any relevant charges or lone pairs of electrons.
What is the theoretical amount of water (MW 18.02 g/mol), in grams, that could form when 26.67 grams of aluminum oxide (MW 101.96 g/mol) reacts with excess hydrogen gas
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