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When the following reaction is balanced in acid solution using the lowest possible whole number coefficients, the coefficient of H+(aq) will be:
Cr2O72-(aq) + CH3OH(aq) --> Cr3+(aq) + HCO2H(aq)
What is the correct charge balance equation for an aqueous solution of MnCl2 that ionizes to Mn2 , Cl-, MnCl , and MnOH.
What is the approximate mass percent of cholesterol in a blood sample having a cholesterol level of 176? Why can you not give a more precise answer
C a spherical balloon had the diameter of 50.0 cm. When taken outside on a hot summer day, the balloon expanded to 51.0cm in diameter. What was the temperature outside?
You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0.100 M benzoic acid (pKa=4.20) and 0.120 M sodium benzoate. How much of each solution should be mixed to prepare this fuffer
Compare and contrast conventional current regulations and oversights that exist in the United States with that of nonconventional medicine.
describe and explain the possible effect on your results of the following experimental errors or variations. in each case, specify the component(s) whose percentage(s)
The volume the vapor occupies is 300 mL and the pressure of the vapor is 400 torr. The piston is then moved so that the vapor occupies 600 mL, and the system is allowed to come to equilibrium at 28 C. What is the final pressure of the CS2 in the v..
What is the mass of H2SO4 in 520.0 cm3 sample of sulfuric acid that has a density of 1.55 g/cm3 and which consists of 55.0 % H2SO4
How much heat energy, in kilojoules, is required to convert 37.0g of ice at -18.0C to water at 25.0C
Write the possible polymeric structure formed between sebacoyl chloride and butane-1,4-diamine, what is the appropriate name for this polymer
What are some of the considerations for the optimal chain length in glycogen? a) Optimal chain length is a compromise between number of available ends, and the need for debranching enzyme
Two peaks on chromatogram have k1= 3.1 and k2= 4.9. column efficiency is 2000 theoretical plates. Void volume is 1mL. Calculate the resolution between these compounds.
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