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For a current of 360 A at 3.67 V, how much electrical energy (in kw-hr) is consumed in the production of 1 kg of aluminum? (A kW-hr is 3.6 x106 J.)
What mass of HCl is contained in 30.0ml of a solution solution which is 37.2 mass% HCl has a density of 1.19g/ml.
A normal value for blood cholesterol is 200mg/dl of blood. If a normal adult has a total blood volume of 5 L, how much total cholesterol is present.
How much energy is released during the complete combustion of 470 grams of cyclobutane
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.
Calculating Delta H, Use some or all of the following reaction enthalpies to calculate delta H for the reaction:
Write down the balanced chemical equation when Fe 3 O 4 reacted with carbon monoxide and calculate mass of carbon dioxide that will be produced in this reaction if 234 g carbon monoxide is reacted with excess Fe 3 O 4 ?
How much heat is required to warm 225 g of ice from -44.7°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
When a 2.41x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed.
A buffer having equal amounts of a weak acid and its conjugate base has a pH =4.4. A small amount of sodium hydroxide was combined to this buffer solution .
Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq) If 1.26 L of H2 gas are formed at STP, how many g of HCl reacted?
Balance the following equation in basic solution. indicate which reactant becomes oxidized during the reaction, which reactant becomes reduced
By what factor (The factor is the ratio of the rates) does the rate of this isomerization reaction increase as the temperature increases from 256 degree celsius to 297 degree celsius ?
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