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A volume of 32.2 mL of a 1.16 M KMnO4 solution is mixed with 17.7 mL of .692 M KMnO4 Solution. Caclulate the concentration of the final solution.
what wind flow rate entering the canyon would produce a pollutant concentration greater than 0.0025 gmol/ft^3 in the air coming out of the canyon?
Hexafluorosilicic acid is made by the reaction of silica and hydrofluoric acid by the following reaction 6HF + SiO2 ? H2SiF6 + 2H2O ?Hr = -670 kJ/mol
A perfectly square piece of gold foil measuring 3.3 mm on an edge is isolated from a bottle of liqueur
find the molar mass of the unknown. 16.6 degrees C freezing point acetic acid and 3.90 degrees C*kg/mol?
Calculate the pH at the beginning of a titration of 50.00 of 0.005M HA (Ka=2.0*10^-2) with NaOH solution. If the quadratic equation is assumed to be accurate
If a 1000 kilogram sample of rock is 0.021% gold by mass, how much zinc is needed to react with the gold extracted from the rock? Assume that the reaction is 100% efficient.
graduated cylinder contains 155 of water. A 19.0 piece of iron (density = 7.86 ) and a 18.0 piece of lead are added. What is the new water level in the cylinder?
The bond distance and dipole moment calculated for the highly reactive gas phase OH molecule are 0.98Ao and 1.78D, respectively. Compute the effective charges on the O and H atoms of the OH molecule (in units of the electronic charges).
Molecular beacons are nucleic acid strands that form hairpin loops. The stem region hybridizes to close the loop and the binding energy is ΔG = -22kJ/mole at 37°C.
The Ksp value for Copper (II) Iodide , Cu(IO3)2 is 1.4 x 10^-7 at 25 C calculate its solubility at this temperature.
How much work (in J) must be done to inflate the balloon when atmospheric pressure is 767 torr?
Write equation for the reaction : Mg+H2SO4(diluted) Identify the oxidizing agent and the reducing agent.
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