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13-Chlorophyll found in plant cells as well as essential to the process of photosynthesis, contains 2.72% Mg by mass. Presuming one magnesium atom per chlorophyll molecule, Compute the molecular weight of chlorophyll.
What wavelength (in s-1) of light would be required to change the vibrational number from n=0 to n=4, assuming O-H acts as a harmonic oscillator?
Propose a synthesis for the following two molecules starting from methylcyclohexane. Methylcyclohexanol and Bromomethylcyclohexane. Show all synthetic intermediates and reagents.
calculate the mass of nitrogen dissolved at room temperature in an 82.0 rm l home aquarium.assume a total pressure of
Write a structural formula and a line-angle formula of each isomer of C4H8. Do not include any cyclic structure. Write the IUPAC name of each isomer. Make sure to include the cis- or tran- in the name if applicable.
Compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of 100°C in a thin flask in an ambient laboratory temperature of twenty five degree celsius.
What is the internal energy change for the gas? Give your answer in joules (J), accurate to three significant figures.
A gaseous mixture of O2 and N2 contains 38.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 365mmHg
Identify the best nucleophile for 2-bromo-2-methylpropane and 2-chloro-2-methylpropane in an Sn1 and a Sn2 reaction; acetone, isopropanol
What are the equilibrium partial pressure of H2 when equilibrium is reestablished following the addition of 0.200 mol of HI?
The empty bulb is filled with water and weighed. The water-filled bulb has a mass of 268.63 g at a temperature of 25.0 0C. The density of water at 25.0 0C is 0.9970 g/mL. Use the mass of the empty bulb and this data to show that the volume of the ..
which of the following quantum numbers describes the shape of an orbital? A)principal quantum number B)Schrodinger quantum number C) spin quantum number D) Angular momentum quantum number E)magnetic quantum number
how many moles of magnesium oxide are produces by the reaction of 3.82g of magnesium nitride with 7.73g of water? how many grams of excess reactant is left over?
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