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Give two reasons why ethuyl iodide is preferred over ethyl chloride in the Williamson ether synthesis. (Hint: check their boiling points).
The pressure is changed to 8.75 atm and the gas is cooled to 15 C. Calculate the new volume of the gas using the ideal gas equation.
You have prepared a saturated solution of X at 20C using 27.0 g of water. How much solute can be dissolved if the temperature is increased to 30 C?
How much energy would be absorbed or re- leased by the H2O in the process 30 grams H2O(g) at 100?C → 30 grams H2O(l) at 20?C.
What cell potential (V) would be expected under the following conditions?
suppose 321 grams of methylamine (CH3NH2) and 332L of oxygen gas are mixed together in the reaction below at STP. how many grams of water should be prouduced?
Calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic: a) a balloon is heated by adding 850J of heat. It expands,
suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?
How many moles of water will be formed from 0.2 mole of CH4 reacting with enough O2. In this reaction CH4+2O2--->CO2+2H2O
What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion.
The optic nerve needs a minimum of 2.0x10^17 J of energy to trigger a series of impulses that eventually reach the brain.
How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts
Octane has a vapor pressure of 40. torr at 45.1 degrees celcius and 400. torr at 104.0 degrees celcius. What is its heat of vaporization (R=8.214 J/K mol)
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