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The MnO4(-) is often used to analyze for the Fe(2+) content of an aqueous solution via the reaction MnO4(-)+Fe(2+)---> Fe(3+)+Mn(2+) in acidic solution. What is the ration Fe(2+):MnO4(-) in the balanced equation
what is the keq value for the acid base reaction between sulfuric acid and nitric acid? Assume that pka of the conjugated acid of nitric acid is -13.
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of Hydrogen gas are formed when 48.7g of sodium are added to water?
The mass of the isotope, I-129, is 128.905 amu while the atomic mass of the contaminated iodine sample is 127.1982 amu. What is the mass of the contaminant?
Derive an expression for the compression factor of a gas that obeys the equation of state p(V-nb)=nRT, where b and R are constants. If the pressure and temperature are such that Vm=10b, what is the numerical value of the compression factor?
It is determined that 3.75 x 10^-4g of a contaminant is present in 3750g of a particular solution. What is the concentration of contaminant in ppm (m/m)?
The first ionization energy of bismuth is Ei1 = +703 . What is the longest possible wavelength of light that could ionize an atom of bismuth?
how many miligrams of concentrated sulfuric acid (H2SO4) [having the strength is 18 M], are required to prepare 750 ml of 3.0 M
if 0.150 moles of salicylic and excess acetic anhydride are used during a synthesis of aspirin, how many grams of aspirin will be obtained if the reaction gives a 38% yield.
Apart from the discrete energy values characteristic of a quantum mechanical system, is the result of an invidvidual measurement of the total energy identical to the result obtained on a classical system?
a proton in a linear accelerator has a broglie wavelength of 128 pm. what is the speed of the proton?
To what volume must 518 mL of 13 M Ca(OH)2 solution be diluted to make a 3 M Ca(OH)2 solution?
The reaction of copper metal with silver ions in a solution if silver nitrate is spontaneous . Calculate she standard cell potentiom to show that this is so.
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