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How many kilojoules of heat are released when 38.3 g of CH_4(g) reacts completely with O_2(g) to form CH_3)H(g) at constant pressure?
Calculate the pressure exerted by 12.3 moles of neon gas in a volume of 5.55 L at 25C using (a) the ideal gas equation and (b) the van der Waals equation
The freezing point depression constant, Kf, for water is 1.86?C/m. Suppose that 5.00 g of mercury(I) nitrate was dissolved in 100.0 g of water.
What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous hydrofluoric acid requires
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II) nitrate are mixed.
Given that the N triple bond energy in N2 gas is 941 KJ/mol and that the O double bond in O2 gas is 494 kJ per mole, calculate the no bond energy in No and ONO
Explain how a compound like eugenol could be seperated from a mixture of other organic compounds that have no significant acidity
Which of the following is true about an endothermic reaction?
the activation energy for the reaction involved in the souring of raw milk is 75kj. milk will sour in about 8 hours at 21 degrees c. how long will raw milk last in refrigeratior maintained at 5 degrees c? assume rate constant to be inversely propo..
What is the maximum amount of P2O5 that can theoretically be made from 186 g P4 and excess oxygen?
a rigid container is filled with liquid acetone at 20 degrees C and 1 bar. through heat transfer at constant volume, a pressure of 100 bar is generated
A 22.0 L volume of an ideal gas in a cylinder with a piston is at a pressure of 3.0 atm. Enough weight is suddenly removed from the piston to lower the external pressure to 1.5 atm. The gas then expands at constant temperature until its pressure i..
Compare mass, charge, and location of the subatomic particles in the atom. Particles are Proton, Nuetron, Electrons. What is the Mass,
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