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What is the lewis structure and molecular shape around the carbons in CCl2CH2 as predicted by the VSEPR theory?
the reaction was found to be first order both with rspect to NO and O3 (expressing concentrations as molarity) What are the units of the rate constant K for this reaction?
Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid.
Draw the lewis dot structure oxalate and for carbon dioxide. In terms of electronic structure, what happens when oxalate decomposes
A fixed quantity of gas at 21 exhibits a pressure of 730 and occupies a volume of 4.40. Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.85 while the temperature is held constant.
How much heat is needed to vaporize 3.63 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
The common forms of nitrogen and phosphorus are N2(g) and P4(s) respectivly. Account for the difference in terms of the single and multiple
A 95.0 gram piece of ice at 0.0 degrees celcius is added to a sample of water at 8.0 degrees celcius. All of the ice melts and the temperature of the water decreases to 0.0 degrees celcius. How many Kg of water were in the sample?
A helium balloon is filled to a volume of 2.5 L at atmospheric pressure. If the balloon is placed inside a sealed container and the pressure is reduced to 455 torr.
the delta H OF vaporization for a new substance is 45 kj/mol and its delta H sublimation is 62 kj/mol, how much energy is needed for freezing 2.75 mol of a substance
Ethane, C2H6, has a molar heat of vaporization of 15 kJ/mole. How many kilojoules or energy are required to vaporize 5 g of ethane?
The buffer has a concentration of 150 mMol ( 150 mM of KH2PO4 / 150 mM K2HPO4. The pKa of the drug ephedrine is 9.6. Will the drug have a negative, positive, or neutral?
How many moles of Barium nitrate must be added to 325mL of 0.20M Iron (III) nitrate to increase the concentration of nitrate ions in the solution to 1.25M.
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