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Determine the amount of energy transferred as heat required to melt 3 mol of ice at 0°C, heat the liquid water to 100°C, and then vaporize the liquid water at 100°C. All processes occur
A student wanted to synthesize methyl t-butyl ehter CH3OC(CH3)3.He attempted the synthesis by reacting sodium methoxide (CH3ONa) to2-bromo-2-methylpropane. His synthetic scheme was unsuccessful.Exp
The space shuttle uses the oxidation of methyl hydrazine,N2H3CH3(l), for propulsion. The oxidation proceeds by the following reaction: 5N2O4(g) + 4N2H3CH3(l) --> 12H2O(g) + 9N2(g) + 4CO2(g)
Calculate the position of the maximum of the six longest wave lengths you could expect to see in the spectrum of an electron that is in a three dimensional cubic box, whose sides are 0.100nm
What is the mechanism for the formation of acetone cyanohydrin from acetone and hydrogen cyanide under catalytic base conditions.
The molar mass of lactic acid is 88 grams. How many grams would be in 2 liters of a 2 M solution? How many molecules of lactic acid?
How does the extraction procedure differ when the organic phase is (a) less dense then water and (b) more dense than water? What differences did you observe between the two drying agents that you us
Serum levels of 0.002 g of gold per 100 mL of serum solution is useful in the treatment of rheumatoid arthritis. What is the molarity of gold in this solution?
Describe a procedure that might be used to separate p-dichlorobenzene (a natural compound) from p-chloroaniline (a basic compound) by extraction.
What is the purpose of venting the separatory funnel by occasionally opening the stopcock during the shaking process? Why is there a buildup of pressure even when no gas is being produced by a chemi
Iron (II) chloride and sodium sulfide undergo adouble-replacement reaction when mixed. Write a balanced chemical equation for the reaction.
One of the most common causes of inaccurate melting points istoo rapid heating of the melting point bath. Under these circumstances, how will the observed melting point compare to the true melting p
What effect would the incomplete drying of a sample (for example, the incomplete removal of a recrystallization solvent) have on the melting point?
A solution of ethanol and n-propanol behaves ideally. Calculate the chemical potential of ehtanol in solution relative to that of pure ethanol. when its mol faction is 0.40 and its boiling poing is
If 12mL of a 0.100M calcium chloride solution is diluted to2.00 L by the addition of water, and if 2 drops (0.100mL) of the final solution are used, how many chloride ions are in the sample??
A quantity of electricity equal to 1.22E+5 C passes through agalvanic cell that has a Fe(s) anode. Compute the maximum chemical amount, in moles, of Fe2+(aq) that can be released into solution.
Steam flows at steady state trough a converging, insulated nozzle, 25 cm long and with an inlet diameter of 5 cm. At thenozzle entrance (state 1), the temperature and pressure are 325 Cand 700 kPa,
Water at 28 C flows in a straight horizontal pipe in which there is no exchange of either heat or work with the sorroundings. Its velocity is 14 m/s in a pipe with an internal diameter of 2.5 cm unt
If your pond has an initial concentration of the toxicchemical of 1.94 M, and the decomposition rate is -0.43 month-1, how long will it be until you can stock the pond with trout?
A spherical air bubble originating from a scuba diver at a depth of 18.0 m has a diameter of 1.0 cm. What will the bubble's diameter be when it reaches the surface?
You are asked to prepare a 0.8500 M solution ofaluminum nitrate. You find that you have only 50.00 g of the solid.
What is the maximum amount of ethanol (in grams) that can be produced when 0.036 kg of ethylene (C2H4) and0.062 kg of steam are placed into the reaction vessel?
If 26.23 mL of a standard0.1650 M NaOH solution is required to neutralize 32.52 mL ofH2SO4, what is the molarity of the acidsolution? M
Why is it necessary to weigh to constant mass? Nettie's answer: because each element has its own mass and weight so you need to make sure that the solid is completely dry?
If 12mL of a 0.100M calcium chloride solution is diluted to2.00L by the addition of water, and if 2 drops( 0.100mL) of the final solution is used , how many chloride ions are in the sample?