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For a multiple choice question like which of the subsequent species does not have resonance structures? is there a shortcut to know the answer without having to draw all the Lewis structures for each molecule?
Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held 1700 g of frozen water at 0 degrees C , and the temperature of the water at the end of the ride was 32 degrees C.
Calculate the molality of a calcium chloride solution prepared by dissolving 69.34 grams of calcium chloride in 638.7 grams of water.
A mixture of Ar and N2 gases has a density of 1.491 g/L at STP. What is the mole fraction of each gas
the preparation of the esters given in this reaction, the reaction product is extracted with 5% sodium bicarbonate solution (NaHCO3) in the isolation step
If the volume of the flask is presumed to be 125mL instead of the measured volume, would the computed molar mass of the liquid be too high or else too low or unaffected by the experimental error
How would one prepare 10ml of a 0.25M HCl solution if 1M HCl was available. How much 1M HCl is needed. How much distilled water is used.
Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in titrations of each of the following.
A solution is made by dissolving 535 mg of this protein in 10.0 mL water. Calculate the osmotic pressure of this solution at 37.0°C in mm Hg.
A wastewater treatment plant produces 34, 500 pounds of secondary sludge each day. Wastewater flows into the plant at a rate of 5.6 MGD and has an influent BOD of 325 mg/L. How many pounds of BOD are destroyed by this plant each day
What kinds of supplies/animals do you bring, and how long do you anticipate your voyage taking. Be specific and use specific examples of the kinds of winds, currents, gyres, and temperatures (and whatever else you will need to provide to justify y..
The total pressure of the mixture is. 650 mmHg. What are the partial pressure of each of the gases ? He, and Xe
a compound is constituted by mass of 22.6 phosphorus the rest being chlorine. given that a volume of 307 ml of the gas
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