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if 150g of water is collected during complete combustion of 166g of butane with ocyben, calculate the percent yield of water.
Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
A solution is prepared by adding some solid CaF2 to water and allowing the solid to come to equilibrium with the solution. The equilibrium constant for the reaction below is Kc = 3.9x10-11.
What mass of liquid water at room temperature (25 C) can be raised to its boiling point with the addition of 31.0 kJ of energy
If 18.6 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution, what is the molar concentration of the ammonia?
The dry ice is allowed to sublime and the mixture is allowed to return to 25.0 degrees Celsius. what is the total pressure in the flask?
If 20.0L of neon gas exerts a pressure of 125 psi at 423 k , what is the number of moles of gas?
"Given the following standard reduction potentials, E°redAl3+/Al = -1.66 V. E°redCr3+/Cr = -0.74 V.
In a gas mixture, the partial pressures are nitrogen 435 , oxygen 145 , and helium 240 . What is the total pressure ( torr) exerted by the gas mixture?
If 5.78 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 = CO2 + H2O how much oxygen is required?
It takes 55.0 J to raise the temperature of an 10.3 g piece of unknown metal from 13.0C to 24.7 C. What is the specific heat for the metal?
Why is it extremely dangerous to attempt to carry out a distillation in a completely closed apparatus
How many moles of CF4 can be produced when 4.00 mol C react with 12.00 mol F2?
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