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1) The multiple components of crude oil are separated by a process called fractionation (fractional distillation) at petroleum refineries.
2) Ethanol Fires can be difficult to extinguish. Discuss why this is true and what approach firefighters might use to fight this type of fire?.
A solution of ammonia and water contains 2.10×1025 water molecules and 5.30×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
The annual production of zinc sulfide (ZnS) is 4.5 104 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal
Calculate the energy needed to convert 50.0 g methane (CH4) from a solid at --100.°C to a liquid at 25°C.
What is the % yield of the combustion of methane if we recover 5.0 g of water from the reaction of 10.0 g of methane with 10.0 g of oxygen
Use the values of Ka1 = 0.056 and Ka2 = 5.4 x 10-5 to calculate the [OH-] in a 0.898 M solution of oxalic acid (H2C2O4). Use E notation and 3 significant figures.
The solubility of oxygen in water is 5.00M when the partial pressure of oxygen is 1.00 atm. Calculate the solubility of oxygen in water in contact with air
This same hydrocarbon is subjected to catalytic hydrogenation reaction conditions to yield C6H14 product, which does not rotate plane-polarized light. What is the identity of the C6H12 hydrocarbon. Draw the structure and name it.
magnesium ions can be precipitated from seawater by the addition of sodium hydroxide.how much sodium hydroxide in grams
the aurora borealis is produced by the emission of a photon by an electronically excited oxygen atom at 558 nm. Calculate the energy difference between the two levels involved in the emission process
what is the molar heat of vaporization in kilojoules per mole if its vapor pressure at 20C is 540 torr?
What volume (in milliliters) of 0.100 M NaOH should be added to a 0.120 L solution of 0.024 M glycine hydrochloride
In the experiment aniline and acetic anhydride are reacted to form acetanilide, how do you calculate the theoretical yield of acetanilide?
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