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Two flasks are connected with a stopclock. The first flask has a volume of 5 liters and contains nitrogen gas at a pressure of 0.75 atm. The second flask has a volume of 8 L and contains oxygen gas at a pressure of 1.25 atm. When the stopcock between the flasks is opened and the gases are free to mix, what will the pressure be in the resulting mixture?
The following reaction, yielding manganese, proceeds until the limiting substance is all consumed: 2Al + 3MnO = Al2O3 + 3Mn A mixture containing 1000 grams of Aluminum and 2000 grams of MnO was heated to initiate the reaction.
Phenylacetic acid (C6H5CH2COOH) is one of the substances that accumulates in the blood of people with phenylketonuria, and inherited disorder that can cause mental retardation or even death
Calculate the mass of ferrous ammonium sulfate you would need to add to a 5.00 mL volumetric flask to make a solution
The half-cell is a chamber in the voltaic cell where one half-cell is the site of an oxidation reaction and the other half-cell is the site of a reduction reaction.
What are the consequences of removing some of the phase transfer catalyst along with the hot reaction mixture after refluxing. a)The phase transfer catalyst acts to remove small amounts of water from the mixture leading to increased purity
For many compounds, it is possible to draw multiple Lewis dot structures that are simplifications of the structure of the true molecule. The actual structure of the molecule
The to * transitions of purine and pyrimidine bases in DNA results in absorbance of light at 260 nm. If the extinction coefficient for a PCR primer of DNA is 1.00 x 104 M-1 cm-1
A sample of sodium metal having a mass of 5.45 g reacts with excess water, and the water is later evaporated. What is the solid product that remains after evaporation, and how many grams of this product are expected to be formed
The compound Mg(OH)2 is basic, but Si(OH)4 is an acid (silicic acid). Why? Select all that apply. 1. The OH groups attached to the silicon atom in Si(OH)4 strengthen the OH bond so that a hydrogen ion dissociates when the compound is dissolved in ..
The Ksp of mag fluoride is 6.4x10 -9degree calculate the solubility (in g/l) of mag fluoride in water
consider the following reactions and the associated rate laws. Which reaction represents an elementary step
The pH of a 0.015 M ammonia solution is 10.72. What is its hydroxide-ion concentration
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