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What is the mass of 67.0 mL of ethanol? The density of ethanol at room temperature = 0.789g/mL
A gas held at 798 mmHg in a 400 mL flask is released into a 3 L flask.Whats the new gas pressure?
Write the rate law for the clock reaction (equation 1) using variable for exponents.
Draw the kekule structure of each of the following compounds. if cis/trans isomers exist, draw both and indicate the geometry of each.
calculate the specific heat of a substance if a 35 gram sample absorbs 28 joules as the tempature is raised from 292 kelvin to 313 kelvin.
A saturated solution of Mg(OH)2 in contact with undissolved Mg(OH)2(s) is prepared at 25 degrees C. The pH of the solution is found to be 10.17.
Draw the organic product of the following reaction between (1S,3S)-1-chloro-3-methylcyclopentane and methanethiol in the presence of sodium hydroxide.
A vessel contains 0.90 g liq H2O in equilibrium with water vapor at 30C. At this temperature, the vapor pressure of H2O is 31.82 torr. What volume increase is necessary for all the water to evaporate
Calculate the molar mass of the unknown. Assume that the molal freezing point depression constant of water is 1.86°C•kg/mol and that the freezing point of water is 0.00°C. Please show all calculations in solving the problem
What is the minimum distance that the moving mirror in the FTIR instrument must transit to resolve these two resonances?
A scuba divers tank contains 0.29kg of O2 compressed into a volume of 2.3L. Calculate the gas pressure inside the tank at 9 degrees C
The ethylenediaminetetraacetate ion, H2Y 2-, forms a strong complex with the calcium ion. How does the addition of the H2Y 2- affect the molar solubility of Ca(OH)2? Explain.
How many grams of Na 2 S0 4 (FM 142.04) should be added to how many grams of sulfuric acid (FM 98.08) to give 1.00 L of buffer with pH 2.80 and a total sulfur (= SO- + HS0 4 + H 2 S0 4 ) con- centration of 0.200 M
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