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The decomposition of nitramide, O2NNH2, in water has the following chemical equation and rate law. O2NNH2 (aq) yields N2O (g) + H2O (l) rate= [O2NNH2]/[H]
Why is it important to the place the thermometer bulb at in the lower part of the Hickman still head? What will happen if you place it either a)too low
Explain the role of a spin vane or boiling stones that are added to a liquid that is to be heated or distilled
What concentration of sodium chloride in water is needed to produce an aqueous solution isotonic with blood (blood, pi=7.70 atm at 25 degree C)
Why should you never heat a cooled system, and how does this rule apply to distillation
How many liters of oxygen gas must be added at constant temperature and pressure if you need a total of 1.72 mol of oxygen gas in the vessel
Imagine that the gas shown in the simulation is an ideal gas such as helium. Notice that the final number of moles of gas is 1.00 mol for each experimental run.
Is 4,5-dimethyl-2,6-octadiyne chiral. f chiral, give the number(s)(from the IUPAC name) of all chirality center(s) present (increasing numberical order, separated by a comma, no space).
For each parameter listed, explain whether or not a change in the parameter will have an effect on the retention time of a compound.
Aqueous silver nitrate was then added to precipitate the Cl- and Br- ions as AgCl and AgBr. The mass of silver halides obtained was 0.9974 g. What are the molarities of HCl and HBr in the original s
If a certain gas occupies a volume of 14 L when the applied pressure is 7.0 atm , find the pressure when the gas occupies a volume of 3.5L.
Write a detailed, stepwise mechanism for all steps in the addition of HBr to 1-pentene in the presence of peroxide. Show all intermediates and use cuved arrows as appropraite.
When 75.0 mL of a 0.100 M lead (II) nitrate solution is mixed with 100.0 ml of a 0.190 M potassium Iodide solution, a yellow-orange precipitate of lead (II) iodide is formed.
why are methylene chloride and ethanol used to recrystallize trans-1,2-dibenzoylethylene
A 3.575g sample of a monoprotic acid was dissolved in water. it took 22.67ml of a .1453 M NaOH solution to neutralize the acid. what is the molar mass of the acid
Equilibrium system given: Fe3+(aq) + SCN- (aq) <- -> FeSCN2+(aq) 1. Equilibrium system Net ionic equation 2. Equilibrium system + 1M Fe(NO3)3 Net ionic equation What stress caused the equilibr
By how much does the chemical potential of carbon dioxide at 310K an 2.0 bar differ from its standard value at that temperature
A catalyst decreases the activation energy of a given reaction by exactly 15 kJ/mol. By what factor does the reaction rate increase at 25oC when the catalyst is used. Assume that the Arrhenius pre-
what is the solubility of O2 at an elevation of 12,000 ft where the atmospheric pressure is 0.657 atm? Assume the temperature is 25°C, and that the mole fraction of O2 in air is 0.209 at both 12
A catalyst decreases the activation energy of a given reaction by exactly 15 kJ/mol. By what factor does the reaction rate increase at 25oC when the catalyst is used
Consider the following equilibrium 2SO2 + O2 yields 2SO3 The equilibrium cannot be established when is/are placed in a 1.0L container
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
When acetylene gas, C2H2, burns, how many liters of O2 at STP are used for every 9.31 mol of acetylene burned
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations