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At 6pm, you put a 300.0g copper pan specific heat Cu= .385 J/g C containing 800.0mL of water all at 25.0 C on the stove. The stove supplies 628J/s. Explain how long will it take in seconds for the water to reach boiling? At approx. Define what time does the water first begin to boil? Compute q for water and the pan and remember density
Calculate the heat energy released when 13.3 g of liquid mercury at 25.00 C is converted to solid mercury at its melting point. Constants for mercury at 1 atm
determine the bond angles of BF3 and CH2O and comment on why the angles are different.
the half life of a second order reaction in reactant a with an initial concentration equal to 0.200 m is 45.6 sec. what
Compute the molar solubility of Hg2Cl2 a solution that contains 0.0100M KN03 and is saturated with HG2Cl2(s)
the activation energy for the reaction o o3 ? 2o2 is 25 kjmol and the enthalpy change is ?h -388 kjmol. what is the
(i) Is the system in equilibrium? If not, which direction must the reaction proceed for equilibrium to be established? (ii) What is the Kp for this system at equilibrium?
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine: 1) Cl2 ? 2 Cl (fast, reversible) 2) Cl + CHCl3 ? HCl + CCl3 (slow) 3) Cl + CCl3 ? CCl4 (fast) What rate law does this mechanism predict
at stp a gas has a volume of 90 l. what volume will it occupy at 450 k and 766 mm hg?at stp a gas has a volume of 888
Nitrobenzene can be nitrated with a mixture of nitric and sulfuric acids. Draw the product that contains two nitro groups. Include all formal charges.
what fragmentation must occur in this compound to produce a base peak at m/z 30 in the mass spectrum
in what form does bh3 ordinarilyexist? give the name molecular formula and structureof this substance. b write
Consider the reaction 2KClO_3(s)\rightarrow 2 KCl(s)+3O_2(g) and the following table of values: Substance Delta G (kJ/mol) KClO_3(s) -296.3 KCl(s) -409.2 O_2(g) 0 State whether it would be worthwhile to investigate finding a catalyst to use in thi..
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