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Under what conditions will the endothermic reaction, 2 Na2O(s) <=> 4 Na(s) + O2(g), be spontaneous?
The activation energy of a certain reaction is 77.3 kj/mol. How many times faster will the reaction occur at 41 degrees celcius than at 0 degrees celcius?
A piston at 7.4 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 1.27 L
Calculate the number of grams of alcohol present in 1.00 L of 60. proof gin. The density of ethanol is 0.798 g/mL.
How many molecules of HCCH react with 143 molecules of oxygen to produce carbon dioxide and water?
calculate the pH formed by mixing 100 mL of 0.20 M HCL with 50 mL of 0.30 M NaOH.
what is the sum of ALL the coefficients in the equation?
A student prepares cyclohexene from cyclohexanol, but forgets to do the extractions. As a result the product contains some cyclohexanol. What peaks would you expect to see in the IR spectrum of this impure product?
Calculate the Ksp for zinc phosphate if 1.18 10-4 g of zinc phosphate dissolved to make 5.0 L of a saturated solution.
The nitration of toluene gives o- and p-nitrotoluene as the major products. Please explain this observation, using structures (rather than words) as much as possible.
According to the following reaction, how many grams of sodium hydroxide will be formed upon the complete reaction of 27.5 grams of water with excess sodium?
What is the volume of 135 mL of oxygen gas at 113°C and 870. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
Explain which of the following aqueous solutions has the strongest ion-dipole attractions:0.3 M Na3PO4, 0.1 M NiF2,0.2 M Rb2CO3, 0.01 M Sr(OH)2 , 0.03 M ScBr3.
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