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How many moles of MgI2 are in 1.3L of a 0.2M solution? How many moles of Mg2+ are in the solution? How many moles of I-?
how long will it take for the concentration of A to decrease from 1.0 M to 0.25 M? If [Bo] = 1.5 M, what will be the concentration once [A] = 0.25 M?
If 8.88 X 10^7 aluminum atoms can fit along a 1.00 inch line, what is the diameter of a single aluminum atom?
How many grams of potassium chloride will be generated on decomposition of 225 grams of potassium chlorate?
What is the smallest amount of CuO (in moles) that would establish the equilibrium?
A piece of metal of mass 13 g at 103?C is placed in a calorimeter containing 53.5 g of water at 21 ?C. The ?nal temperature of the mixture is 57.2 ?C. What is the speci?c heat capacity of the metal.
How many moles of (NH4)2SO4 are there in 100.00 g of ammonium sulfate? How many ammonium ions are in 100.00 grams of ammonium sulfate? Use Avogadro's number, 6.0221 x 1023 ions/mol.
A 0.3500 g sample of brass is analyzed by the procedure in the above exercise. The Beer's Law constant for the copper ammonia complex is determined to be 7.50 x 10^-1 mL/mg.
Draw a flow sheet to show how you would separate the componenets of a mixture containing an acid substance,toluic acid, a basic substance, p-bromo-aniline and anthracene, a nuteral substance.
Discuss the chemical interactions of the material(s) involved in this incident or hazardous properties relevant to the incident; Discuss the mitigation required or implemented.
For the reaction CH4+202=2H2O+CO2, calculate the percent yield of carbon dioxide if 1000. g of methane react with excess oxygen to produce 2300. g of carbon dioxide.
how does the ability of permanganate (VII) ( when being reduce to Mn2+) to oxidize aqueous chloride , bromide or iodide ions change?
How many seconds after the start of the reaction does it take for the reactant concentration to decrease to 0.0185 M?
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