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A NMR spectrum shows a singlet at 7.3 ppm, a triplet at 4.3, a triplet at 2.9, and a singlet at 2.0. The relative areas are 5, 2, 2, and 3 respectively. What is the structure of the compound
The rate of decomposition of C3H6 in the following reaction is 0.45 M/s. Calculate the rate of production of H2O. 2 C3H6 + 2 NH3 + 3 O2 → 2 CH2CHCN + 6 H2O
Consider the coordination of Cu2+ by the tridentate iminodiacetate ligand, HN(CH2CO2-)2, abbreviated A2-. When the monoprotonated form
If the solubility of calcium phosphate is 3.41*10^-5 g/l. How many liters of water are required to dissolve 1g of calcium phosphate
Calculate deltaS for this reaction at 200 ºC (again assume Cp is independent of temperature)
A volume of 18.0 contains a mixture of 0.250 , 0.250 , and an unknown quantity of . The temperature of the mixture is 0 , and the total pressure is 1.00 . How many grams of helium are present in the gas mixture
Which of the 20 standard amino acids would be best to use to create a buffer at pH = 8.6 and why?
Cyclopropane contains 85.7%C and 14.3% H by mass. At 50C and .984 atm pressure, 1.56g cyclopropane has a volume of 1L. What is the molecular formula?
Which of the following wave functions are eigen functions of the operator d^2/dx^2? If they are eigen functions what is the eigen value
Suppose that N2 gas may be described as van der waals gas. This gas (n=1.25 mol) is expanded isothermally and reversibly from a volume of 1 liter to 10 liters at 300K
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.75 cm^2 .
Given the standard free energies of formation, what is the value of for the cell reaction?
Describe the development of the modern periodic table. Include contributions made by Lavoisier, Newlands, Mendeleev, and Moseley.
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