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The vapor pressure of ethanol at 34.7 ºC is 100.0 mm Hg as well as the heat of vaporization of ethanol is? Hvap=38.6kJ/mol. Explain what is the vapor pressure of ethanol in mm Hg at 65.0 ºC?
Explain an iron skillet with a mass of 0.96 kg and a copper skillet of the same mass are both at a temperature of 165.0 degrees Celsius. Explain when the skillets cool to room temperature (22.0 degrees Celsius)
When a 2.3L sample of hydrogen gas at 25oC is heated to 120oC at constant pressure, what is the new volume of the gas?
The constant of a reaction is 3.5 x 10^-3 S^-1 at 25 degrees Celsius, and the activation energy is 33.6 Kj/mol. What is k at 75 degrees Celsius
If a gas is placed in a storage tank at pressure of 30.0atm at 20.3 degrees Celsius. As a safety device, a small metal plug in the tank made of a metal alloy that melts at 130 degrees Celsius. If the tank is heated, Explain what is the maximum pre..
Calculate the volume change (in Liters) during the oxidation of sulfur dioxide in which ?E = -849.700 kJ and ?H = -852.373 kJ at a constant pressure of exactly one atm and constant temperature
What one reagent should re-energize the light solution after it has faded? Explain using moles and limiting reagents.
1. calculate the theoretical potential of a daniell cell prepared with a solution containing cu2 0.10 m and azn2 0.050
A student has spilled some acid onto their arm. One lab partner suggests pouring some base on it to neutralize the acid but the TA quickly interjects that would be a bad idea and has the student begin washing their arm
Pentan-2-ol reacts with tosylate/nucleophile and the following: Hydroxide, cyanide, bromide, sodium propoxide and ammonia. What are the products from each? Then 2-methylpentan-2-ol reacts with the same substances. What are the products
Many organic chemists when making a new solid compound often first try ethanol as a recrystallizing solvent. If soluable at room temperature, they simply add water and this often works! Why?
It takes 53.0 j to raise the temperature of an 10.2 g piece of unknown metal from 13.0 C to 24.9 C. What is the specific heat for the metal. Answer in value and units (fully) for full points.
Dr. Brown has a radioisotope source containing 1.2 x 106 (also written as 1.2E+06) atoms of Plutonium-238 in 1985, how many atoms will remain in 352 years
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