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By mistake, a quart of oil was dumped into a swimming pool that measures 25.0cm by 30.0cm (assume the oil spread entirely across the surface of the water in the pool) What was the thickness of the resulting oil slick?
Draw the Lewis structure of [(CH3)3O]+ . Be sure to show all atoms, bonds, lone pairs, and formal charges.
A solution may contain the following ions Ag+, Cu2+, Cd2+, Mn2+, Ni2+, and Na=. A white precipitate formed when 0.10 M NaCl was added and after this was removed the solution was treated with H2S gas under acidic conditions and no precipitate forme..
Calculate the heat of solution for sodium acetate when 35.0mL of water is in a calorimter and 1.5461g of sodium acetate is added. The initial temperature is 23.0 C and the final temperature is 24.8 C.
a gas is compressed at a constant pressure of0.320atm from a volume of 8.00l to 4.00 l. in the process 400 j of heat
Problem- Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is 2Mg(s) + O2(g) ? 2MgO(s).
Which alkene is more stable, the E or Z isomer above. why does irradiation go from E to Z rather than the other way around. how will the Rf values from TLC compare
The reverse reaction is first order in B and the rate constant is 8.50 X 10^-1 What is the value of the equilibrium constant for the reaction A (equilibrium) B at this temperature
A bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a TRIS buffer, (HOCH2)3CNH2. The buffer is made by dissolving 34.0 g TRIS (pKb = 5.91) in enough 0.075 M HCl to make 1.00 L of solution.
Calculate the concentration of a NaOH solution if 0.1379 g of succinic acid (H2C4H4O4, 118.09 g/mol) requires 12.4 mL of NaOH solution
What is the relationship between myelin sheath and dopmaine? What does myelin sheath do, how does it porvide insultion. What disease are caused when myelin sheath stops working and how does this effect elderly people?
What mimimum hydronium ion concentration (M) would be needed to prevent precipitation of cupric hydroxide (Cu(OH)2 Cu2+ + 2OH- , Ksp = 2.2 x 10-20) from a solution containing 0.010 M Cu2+ ion?
Calculate DG0 for the reaction below. The standard molar entropy change for the reaction at 298 K is -287.5 J/mol·K.
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