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What is the theoretical yield of aluminum oxide if 2.80 mol of aluminum metal is exposed to 2.40 mol of oxygen? Express your answer numerically in moles.
What is the concentration of toluene in air produced by vaporizing 1 ml of liquid toluene into clean air to produce a total volume of 100 liters
Draw two molecules that are diastereomers and calculate the energy of each. Then draw two molecules that are enantiomers and calculate the energy of each.
given an atmospheric pressure of 29.76 in Hg and a reading from a vacuum gauge 29.87 kPa, what is the pressure in the syringe?
A 10.4-g sample of CaCl2 is dissolved in 107 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
how many grams of aspirin are available for immediate absorption by the stomach? Assume immediate dissolution of aspirin and it does not significantly change the pH of the stomach contents. The pKa of aspirin is 3.50 and its molecular weight is 18..
If the final tempurature of the combined water is 42.0 degrees C and the heat capacity of the calorimeter is 26.3 J/degrees C , calculate the mass of the water originally in the calorimeter
Why is it important to clean the surface of the zinc and copper electrodes with 1 M HNO3 immeadiately before using them in this experiment.
A sample of chlorine gas in confinedin a 5.9L container at 220. torr and 27 degrees Celsius. How many moles of gas are present in the sample?
Draw a circuit diagram that subtracts two inputs signals and then amplifies the subtracted signal
already have a solution that contains 10 mmol of acetic acid. how many millimoles of acetate will you need to add to this solution? the pKa of acetic acid is 4.74
When the mixture is ignited, gases are produced and 815 J of energy is released. To what volume will the gases expand against a constant pressure of 635 mmHg, if all the energy released is converted to work to push the piston?
Calculate the number of moles of Ascobic acid in the 50.00 ml Sample. Titration Volumes of KIO3 Initial Buret reading/ml trial 1=12.54 trial 2=8.78 Final buret reading/ trial 1=38.74 trial 2=34.93 Volume of KIO used/ml trial 1=? trial 2=?
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