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A quantity of liquid methanol, CH3OH, is introduced into a rigid 3 L vessel, the vessel is sealed, and the temperature is raised to 500K. At this temperature, the methanol vaporizes and decomposes according to the reaction
CH3OH(g) <=> CO(g) + 2 H2(g) Kc= 6.90 x 10-2.
If the concentration of CO in the equilibrium mixture is 0.2 M, what mass of methanol was initially introduced into the vessel?
After workup and purification, a student obtains 1.1214 g of banana oil (isopentyl acetate). What is the percent yield for this reaction? Report your value to one decimal place (xx.x%)
calculate the volume of 1.420 M NaOH required to titrate 38.70 ml of a 1.50 M H3PO4 solution
Which value is colosest to the POH of a 0.3 M solution of the weak base methylamine (CH3NH2)? the Ka for the acid form of methylamine is 2.27e-11 answer choices are 0.011, 1.94,3.92,10.08 and 12.06.
if 2.3g of sodium reacted with 1.8 of water what would be the total mass of sodium hydroxide and hydrogen
A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO2, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar
A sample of aspirin to be purified has a mass of 1.0g. Aspirin has a solubility of 1.0g in 30ml of water at 37Celcius and a solubilty if 0.10g per 30 ml at 25 Celsius. The sample is dissolved in 30 ml of hot water and cooled to 25 Celcius. How muc..
when strongly heated magnesium sulfide formed a crystalline deposit on the walls of a sealed reaction vessel. metallic
Critically evaluate the procedure used in this experiment as a quantitative technique for the analysis of copper (II) ion. Suggest sources of errors and ways of minimizing the error
The masses of the unknown and the solvent (water) were determinded, and the unknown completely dissolved in the water. Just before the jacketed test tube containing the unknown solution was placed in the ice-salt water bath
Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long it will take for 0.600 g of the isotope to be reduced to 0.310 g by decay.
Calculate the freezing point of an aqueous solution formed by dissolving 4.22 g of KCl in 25.00 mL of water. Kf for water is -1.86 degrees C/m. Assume the density of water
Write the balanced equation for the hydration of CuSO4. Indicate the physical states using the abbreviations (s), (l), or (g) for solid, liquid, or gas, respectively
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