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For a standard cell made using gold (Au) and gold (III) nitrate, and cobalt and cobalt (II) nitrate write the spontaneous reaction and the reaction in cell notation form and Calculate the E^(degree sign) for this cell
freezing point of nbsppure 2-methyl-2propanol is 25.5 degree celsius however it absorbs h2o when it on exposed to humid
A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g)--> B(g)
Baseball reporters say that long fly balls that would have carried for home runs in July "die" in the cool air of October and are caught. The idea behind this observation is that a baseball carries better when the air is less dense. Dry air is a m..
Using the formula W = mg, how many milliliters of water with a density of 1g/mL are required to weigh 0.75 newtons and g = 9.81 m/s2?
The [OH-] = 1.3 x 10^ -6 M for a 0.025 M solution of a weak base. Calculate the value of Kb for this weak base.
When 20 mL of a 120 mL stock solution containing 2 M BaF2 is diluted to 80 mL, what is the concentration of F- in the new solution.
How should a professional emergency responder be concerned about the following routes of radiation exposure for a person on scene and a person downtown?
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84
The masses of the unknown and the solvent (water) were determinded, and the unknown completely dissolved in the water. Just before the jacketed test tube containing the unknown solution was placed in the ice-salt water bath
a solution is 40 acetic acid by mass. the density of this solution is 1.049 gml. calculate the mass of pure acetic acid
A zero-order reaction has a constant rate of 1.90×10-4 . If after 40.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
Methane, CH4, reacts with oxygen to produce carbon dioxide, water, and heat. C2H4(g) + 3O2(g) arrow to 2CO2(g) + 2H2O(l) How much heat is absorbed or released if 15.00 g of O2 is reacted
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