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calorimetry can be used to find heats of combustion. suppose a calorimeter helps someone to determine that 4032 kj of heat is released during the combustion of 88.0 grams of propane, C3H8 (44.0 g/mol). what would be the amount of heat released for the combustion of 0.500 moles of propane?
Wind provides a source of renewable energy that is increasingly being tapped. Modern wind tubines can conbert up to 30% of the kinetic energy of the incoming wind blowing through their blades to electicity.
Calculate the ratio of HCL molecules in the first excited rotational state to those in the ground state @ 25 C. Assume an equilibrium bond distance of 1.275 angstroms.
Elemental exonium (not a real element) consists of 2 major isotopes Abundance Mass 31% 95 amu,69%. 118 amu What is the atomic weight for exonium.
Ephedrine was once used in diet pills that could be purchased without a prescription. Ephedrine is composed of 72.7% C, 9.15% H, 8.49% N, and 9.68% O.
H2 and Cl2 combine to form HCl. In a gas phase equilibrium mixture of H2, Cl2, and HCl at 300 K, [HCl] = 0.0036 mol/L and [Cl2] = 0.00485 mol/L.
By Solving this problem student understand about isotopic abundance and how to calculate atomic weight (average atomic mass) of an element -
an auto mechanic spills 85 mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.5 M NaHCO3 must be poured on te spill to react completely with the sulfuric acid.
The gas phase irreversible first-order reaction A----> 3B , is carried out in PFR where the feed is equal molar in A and inerts. the conversion under these circumstances is 50%.
The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding.
Why does the same amount of liquid when left in a wider and flatter container evaporate quicker than when left in a narrower and deeper container?
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
What is the percent yield for iron if the reaction of 65.0 of iron(III) oxide produces 45.0 of iron if Iron(III) oxide reacts with carbon monoxide to produce iron and carbon dioxide.?
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