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For a reaction whose standard enthalpy change is 100.0 kJ, what temperature is needed to double the equilibrium constant from its value at 298 K? What temperature is needed to increase the equilibrium constant by a factor of 10? What if the standard enthalpy change were 20.0 kJ?
the rate constant for the second order -reaction is 2NOBr(g)------>2NO(g)+Br2(g) is 48 L/mol*min at a certian temperture. How long will it take for 90.0% of a .0200M solution of NOBr to decompose.
An automobile gasoline tank holds 36 kg of gasoline. When the gasoline burns, 95 kg of oxygen is consumed, and carbon dioxide and water are produced.
what are the structural formulas for the following compound : 6-bromo-2-methyl-3-heptyne
Suppose that 180 g of ethanol at 26 ? C is mixed with 225 g of ethanol at 83 ? C at constant atmospheric pressure in a thermally insulated vessel.
Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 rm J/(g cdot {^circ C}) and 1.00 rm g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings.
What mass of sodium chloride, NaCl, is needed to make 389. g of a 3.89%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
Provide structures consistent with the following molecular formulae and spectral data, and assign spectral peaks. Write your structures and tables on a sheet of paper.
How many moles of oxygen will be produced if 27.6 grams of Al are produced?
How many grams of F2 are needed to produce 158 g of PF3 if the reaction has a 79.8% yield?
how much energy is released when 89 grams of water vapor (steam) is cooled from 503 K to 354 K?
suppose you want to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9g of pure AgNO3.
If 24 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
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