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2.50 g of an unknown organic compound known to contain C, H, and O was placed into a 250 mL sealed flask. The sample was vaporized. The resulting gas had a pressure of 0.54 atm at 28.5oC. What is the molar mass of this unknown organic compound?
How does the addition of aqueous NH3 to a solution separate and identify Cu2 and Bi3 ions? Why wouldn't the additon of a strong base, such as KOH, work just as well as the addition of aqueous NH3?
What is the partial pressure of SO2(g) in the larger container. What is the partial pressure of N2(g) in this vessel. What is the total pressure in the vessel
A 35.0-kg child starting from rest slides down a water slide with a vertical height of 20.0 m.
an empty aerosol can at 25 degree calcius still contains gas at 1.00 atmosphere pressure. if an empty can is thrown into a 475 degree calcius fire, what is the final pressure of the heated can?
[Mn(bipy)(N3)2] is a coordination complex with azide ion. What is the charge on the manganese. What is the overall charge on the complex. What is the name of this coordination complex.
The shampoo bottle contains 435ml of gas, under a pressure of 1.10 atm, at a temperature of 30.0°C. When you climb high into the air the bottle starts to expand eventually exploding and covering you and your companions with Pert Plus.
Each molecule can also be in one of two orientations. What is the entropy of this system of molecules in boxes with two possible orientations.
the molecular weight of glycine is 75.07gmol and 155.15gmol for histidine. you want to purify each from a solution that
Describe the phenomenons of osmosis, freezing point lowering and boiling point increase and what is the osmotic pressure of the above salt/sugar solution in comparison to pure water?
Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines
A 0.150-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2 ions at equilibrium? Assume the formation constant of Co(NH3)62 is 5.0× 1031.
While drawing the stereoisomers for 1-bromo-2-chlorocyclohexane, in the Trans pair does it matter if the H (on the C with the Br) and Cl (on the C with the H) are on the wedges or else does it matter if the Br and H instead of the H and Cl, be dra..
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