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One criterion: Distillate volumes must be small justifying the short path for the minimal vapor. The other criterion is very basic and relates to whether simple or fractional is selected. Use this criterion and discuss how it is suitable given the two liquids being separated in williamson ether sythn of sodium ethoxide and 1-bromobutane.
The balloon is blown up with air from a starting volume of 1 m3 to a volume of 3 m3. Find the final mass of air assuming it is at 25oC and the work done by the air
A cylinder of oxygen gas contains 26.4 g of O2. Another cylinder, twice the volume of the cylinder containing oxygen (and at the same conditions of pressure and temperature), contains CO2 gas.
How much heat is liberated by the combustion of 183 g of hydrogen? ΔHcomb = -286 kJ/mol.
Consider the following qualitative analysis scenario and then classify what type(s) of qualitative analysis principle is/are being used. More than one choice may be correct.
When 50.0 mL of 0.50 M formic acid is titrated with 0.50 M sodium hydroxide, calculate the pH for each of the following: Ka of formic acid = 1.8 x 10^-4 Be sure to account for volume changes at each step.
Carbon emits photons at 745 nm when exposed to blackbody radiation. How much energy would be obtained if 44 g of carbon were irradiated?
What is the minimum amount of Tc-99 that must be shipped in order for the lab to receive 10.0 mg? Show you working please
if smaller what does this tell you about concentration you determined. write equilibrium exoression to rationalize explanation. How would temp impact ksp
explain how to determine the instantaneous rate of formation of i3- at exactly 20 minutes. draw on the graph above as part of your. explanation.
How much heat (in ) is required to warm 12.0 g of ice, initially at -11.0 degrees C, to steam at 111.0 degrees C? The heat capacity of ice is 2.09 and that of steam is 2.01 J/gC.
A 6.50 x 10^-5 M solution of potassium permanganate has a percent transmittance of 27.3% when measured in a 1.15-cm cell at a wavelength of 525 nm.
If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 27 cm3 of sodium borohydride (of density 1.074 g/cm3)?Answer in units of mol
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