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If the entropy of a collection of molecules in 50,000 boxes is 3.73E-20 J/K, how many molecules are there?
a burning candle produces a luminous flame. What is the fuel for the burning candle. Why is the flame luminous
sodium hydrogen carbonate how do I figure out how many moles of carbon dioxide are in the balloon? The circumference of the balloon is 5.89 cm.
Calculate the mass of the solvent (CCl4) in kg. Use the molality calculated in question 2 and the solvent mass calculated in question 3 to determine the number of moles of solute present in this solution.
The half life of oxygen-19 is only 29 seconds. Lets say we somehow instantly make a Liter of O-19 in a reactor. So at t = 0 we have 1 Liter of this isotope. What fraction of the O-19 isotope would be present after 5 seconds?
Titration of a Weak Acid with a Strong Base, Find the pH before, at, and after equivalence point of 35 ml of 0.15 M lactic acid with 0.18 M NaOH.
What would you use to prepare a buffer system with a pH of around 4.2. What would you use to make a buffer with a pH of around 9.2? Describe the process you used to choose the correct buffer for each pH.
The Clean Air Act mandates that certain metropolitan areas must add oxygenates to the gasoline that is sold in that area. What is the reason that oxygenates are added to gasoline?
Atomic orbitals of carbon relative to methane in a cubic frame of reference.
Calculate the wavelength of the n=4 to n=1 and the n=4 to n=3 transitions. Indicate in which regions of the electromagnetic spectrum these transitions would occur.
write a general equation that illustrates all acid-base reactions. using equation, what factor can be varied to observe their effect on HEAT
Determine what would be its temperature after absorption of 9.4 * 10-2 kWh of heat If 1.45 L of water is initially at 25.0 °C,?
Describe and explain the possible effect on your results of the following experimental errors or variations. In each case specify the component(s) whose percentage(s) would be too high or too low.
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