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Yassah Kesselly
Questions and answers by visitors named
Yassah Kesselly
Questions (19)
The reaction 2 NO2(g)--> 2NO(g)+O2(g) is postulated to occur via the mechanism below:
NO2)g)+ NO2(g)-->NO(g)+NO3(g) ;K1,slow
3 answers
122 views
At equilibrium at a certain temperature, the concentration of NzH3(g), H2(g) and N2(g) are 0.980 M, 1.53 M and 0.510,
1 answer
57 views
Kc= 0.040 for the system below at 450oC:
PC15(g)<<==>>PC13(g)+ C12(g) evaluate kp for the reaction at 450oc
3 answers
70 views
In the gas phase reaction PC13(g) + C12(g)<==>PC15(g) Kc = 1.9
The system is equilibrium with concentrations [Pc13]=0.5M .what is
1 answer
52 views
What would be the freezing point of 3.00m aqueous solution of a nonvolatile , nonelectrolyte material? The cryoscopic constant
1 answer
76 views
What mass of water must be used to dissolve 20.0 grams of ethanol,C2H5OH,to prepare a 0.0500 molal solution of ethanol
1 answer
91 views
For the gas phase decomposotion of dinitrogen pentoxide at 335 k the average rate of disapperance of N2N2O5 over the time period
1 answer
70 views
Nitrogen reacts with hydrogen to form ammonia
N2(g)+3H2(g)<==>2 NH3(g) At a certain temperature the equilibrium constant kc =2.0.
1 answer
95 views
Cyclopropane rearreanges to form propane CH2CH2CH2--> CH2=CHCH3 by first order kinetics .the rate constant is k=2.74×10-3
1 answer
81 views
The decomposotion ofN2O5(g)-->NO3(g) proceeeds as a first order reaction with a half life of 30.0 seconds at a certain
1 answer
70 views
Consider the following reaction. What would be the equilibrium constant expression?
4 Br2(g)+ CBr4(g)
1 answer
62 views
Consider the following reaction. What would be the equilibrium constant expression?
4 Br2(g)+ CBr4(g)<==>4 HBr(g) + CBr4(g)
1 answer
65 views
The addition of nonvolatile solute into a liquid solvent is what?
1 answer
60 views
The addition of nonvolatile solute into a liquid solvent do or cause what
1 answer
51 views
Solution that follow the simple raoults law equation exactly are called what
3 answers
67 views
A solution was made by dissolving 3.75g of a solute in 208.7 g of acetone.the solution boiled at 56.58°c.the boiling point of
1 answer
91 views
What is the rate constant of first order reaction with a ualf life of 30.0 seconds at a certsin temperature
1 answer
57 views
A solution was made by dissolving 3.75g of a solite i 108.7g acetone.the solution boiled at 56.58°c.the boiling point of pure
2 answers
103 views
Consider the following reaction
2 N2O(g)--2NO(g)+ O2(g); rate = K[N2O] If the half life for the reaction is 0.910 s,what is the
3 answers
94 views
