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An unknown molecule with a molecular formula C5H8, which is either an alkene or alkyne. Which is it.? Determine the degree of unsaturation for C5H8.
Draw constitutional isomers of C5H8 that are terminal and internal. Name each molecule according to IUPAC.
Plutonium-240 (PU-240) is a byproduct of the nuclear reaction that takes place in a reactor. It takes one thousand years for 10% of a 4.60 g sample to decay. (Nuclear decays are first-order reactions)
the vapor of a volatile liquid is able to fill a 408-mL flask at 100.4C and 765mm Hg, what is the molar mass of the liquid?
a mixture of 2- percent ammonia 55 percent hydrogen and 25 percent nitrogen by a volume 9.8 newton per square meter. what is partial pressure of ammonia?
What is the minimum flow rate of water (? = 0.990 g/mL) required to scrub out 90.0% of the incoming NH3? What is the mole fraction of NH3 in the scrubbed waste gas stream?
dissolved in the same volume of distilled water, how do you expect the conductivities of each solution to compare? Explain your reasoning.
Why is molality used in the equations describing freezing-point depression and boiling-point elevation? Explain in detail and explain the reason why molarity is nto used.
For each of the following processes, decide whether it is spontaneous or non-spontaneous.
In 1774, Joseph Priestley discovered that mercury(II) oxide decomposes on heating to elemental mercury and a gas, later called oxygen. If 56.0 g of mercury(II) oxide is heated and 26.0 % of it decomposes,
Elliptical holes estimate the angle of entry : Cos A bullet hole in a wall at a crime scene is elliptically shaped. The loner dimension is 20 mm and the shorter dimension is 14 mm. What is the angle of entry?
A sample of gas occupies 10.5 L at 600 torr and 50C. What volume will it occupy at STP?
How many g of NaCl are required to prepare 250.0 mL of a 0.3440 M solution of NaCl in water?
What is the volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make a final volume of 120 mL? Show your work.
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