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Why is the boiling point of the parent alcohol (i.e. cyclohexanol) higher than that of the product alkene (clycohexene) in the dehydration experiment?
Celsius and -125 degrees Celsius , respectively. Calculate the entropy changes for fusion ( solid to liquid) and vaporization (liquid to gas ).
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively.
When solid copper is added to nitric acid, copper(II) nitrate, nitrogen dioxide, and water are produced. Write the balanced chemical equation for the reaction. (Use the lowest possible coefficients. Use the lowest possible coefficients. Include st..
What is a possible molecular formula of the hydrocarbon?
The radioisotope argon-41 is used to measure the rate of the flow of gases from smokestacks. It is a γ emitter with a half-life of 109.2 minutes. Calculate the fraction of an argon-41 sample that remains after one day.
Calculate the initial effusion rate. If this rate continued how much time would pass until the pressure dropped to 0.90 bar? (actually the rate changes with pressure- indicated why using the equations). assume values for nitrogen
An aqueous solution is 30.0 % by mass ammonia, NH3, and has a density of 0.892 g/mL.The mole fraction of ammonia in the solution is?
What mass of sucrose (C12H22O11) should be combined with 494 g of water to make a solution with an osmotic pressure of 9.00 atm at 320 K?
Explain why Lewis dot structure for S2Cl2 IS Cl - S - S - Cl why does the two sulfurs have to be beside each other and the two chlorines have to be the first and last?
A 1.994g sample of ethanol, CH3CH2OH is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 10.91. If the heat capacity of the bomb is 615.5j/k and it contains 1.150kg of water, what is the enthalpy chnge per mol of et..
A reversible adiabatic expansion of NO2 (g) from an initial V=20dm^3 and an initial T=300K to a final P=1bar. Find Vf, Tf, and the change in entropy for both the system and surroundings.
estimate the enthalpy change for the reaction between 1 mol c2h5oh as liquid ethanol, a fuel made by fermenting corn, and o2 to yield co2 and h2o under standard conditions by using bond enthalpies,
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