How many kilograms of chalcopyrite must be mined
The most common source of copper is the mineral chalcopyrite. How many kilograms of chalcopyrite must be mined to obtain 320. of pure copper?
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The MRI (magnetic resonance imaging) body scanners used in hospitals operate with 400 {rm MHz} radiofrequency energy. How much energy does this correspond to in kilojoules per mole?
What is the PH of 1L of 0.30 M Tris, 0.60 M TRISH+ Buffer to which one has added 5.0 ml of 12.0M NH3 in enough water to make 1.00l of solution? the Kb for ammonia is 1.8 X 10^-5
In the following reaction, identify the oxidized reactant, the reduced reactant, the oxidizing agent , and the reducing agent.2Al + 6HCl 2AlCl3 + 3H2
If 24g Mg is used and the percentage yield is 95%, how many grams of magnesium hydroxide should be recovered?
How do the properties of iron alone compare with the iron in an unheated iron-sulfur combination?
Calculate the minimum number of grams of C3H8(g) that must be combusted to provide the energy necessary to convert 1.61 kg of H2O from its solid form at -10.0°C to its liquid form at 80.0°C.
What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V2O5 with 40.0 g of calcium based on the following chemical reaction?
At 600 degrees C, the equilibrium constant for the reaction 2HgO(s) --> 2Hg (l) +O2 (g) is 2.8. Calculate the equilibrium constant for the reaction 1/2)O2(g) + Hg(l) --> HgO (s)
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