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Consider the brilliant blue spectrum (blue 1) shown here. What is the wavelength of maxmal absorbance in nm? (Do not include units in your answer: number only)
calculate the molality of each of the following solutions: a)14.3g of sucrose in 676g ofwater b)7.20 moles of ethylene glycol in 3546g of water.
Calculate the mass of KI in grams required to prepare 4.00 102 mL of a 2.80 M solution.
Explain why the H-H distances determined for coordinated dihydrogen by X-ray diffraction are always significantly shorter than
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ?C. What is the new pressure of the gas in Pa?
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons.
How is the half-life of a first-order reaction effected by the concentrations of the reactants?
A sample containing 2.40 moles neon gas has a volume of 8.00 L. Assume that the pressure and the temperature remain constant.What is the new volume of gas in liters when a leak allows one-half of the neon atoms to escape?
Apply the steady state approximation to determine expressions for the rate of production of methane, CH4, and of ethane, C2H6.
Calculate the volume the gas will occupy if the pressure is increased to 1.88 atm while the temperature is held constant
The freezing point (Tf) for t-butanol is 25.50°C and Kf is 9.1°C/m. Usually t-butanol absorbs water on exposure to the air. If the freezing point of a 9.2-g sample of t-butanol is measured as 24.59°C, how many grams of water are present in the sam..
Enough of a monoprotic acid is dissolved in water to produce a 0.0193 M solution. The pH of the resulting solution is 6.31. Calculate the Ka for the acid.
the electron drops down to the 3d subshell, releasing a photon in the process. how many radial nodes and how many angular nodes does each of the orbitals in part (a) have?
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