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An emission line from K atoms is found to have two closely spaced components, one at 766.70 nm and the other at 770.11 nm. Account for this observation, and deduce what information you can.
Consider the arrangement of bulbs shown in the drawing. Each of the bulbs contains a volume of gas as shown. PN2 = 700. torr, PNe = 206 torr, and PH2 = 402 torr. What is the pressure of the system when all the stopcocks are opened, assuming that t..
When 0.2250 g Mg was heated with 0.5331 g N2 gas, all the Mg was consumed forming 0.3114 g Mg3N2.What mass of N2 is left over ?
What is the molarity of a calcium hydroxide solution if a 25.0 mL sample is exaclty neutralized by 42.5 mL of 0.0750 M nitric acid?
Propane, C3H8, when used as a fuel, reacts with oxygen gas to produce carbon dioxide and water. What mass of oxygen will be required to react with exactly 14.05 grams of propane?
If you start with 15.0 of a 0.900 solution of , and then dilute it with water to 270 , what is the concentration of at equilibrium?
Determine the volume of 0.890 M NaOH needed to reach the equivalence point in the titration
Equation that represents the reaction of 2% ethanolic PBP solution with 4-methylcyclohexene
Why is acceptable to use a mixture of the alpha and beta anomers of D-(+)-mannose in this reaction? (i.e. why isn't it necessary to use either a pure alpha or the pure beta anomer
What is their role in this reaction. In the case of this particular example that you watched, where would each of these ions have come from
if one started with 13.9 mmol of sodium benzoate, how many grams of benzoic acid should be formed?
If 2.50 L N2 react with 7.00 L H2, what is the theoretical yield (in liters) of NH3? Assume that the volumes of reactants and products are measured at the same temperature and pressure.
The BF3 molecule has one A'1, one A"2 and tow E' vibrations. Does this representation account for all of the normal mode fundamental vibrations for this molecule
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