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Calculate the change in heat when 17.25 g of water vapor (steam) at 100.0 degrees C condenses to liquid water and then cools to 10.00 degrees C
What mass of solid potassium nitrite would need to be dissolved in 500. mL of 0.40 M HNO2 to make 500. mL of a NO2?/HNO2 buffer solution that has a pH = 3.25? Ka of HNO2 = 7.1 x 10?4
Explain What is the AXE notation of sodium chromate, barium nitrate, sodium nitrate, and barium nitrate
Suppose 25.0 g of solid NaOH is added to 1.5 L of an aqueous solution that is already 2.4 M in NaOH. Then water is added until the final volume is 4.00 L. Determine the concentration of the NaOH in the resulting solution.
Suppose you wanted to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9 g of pure AgNO3.
Cyclopropane, C3H6, is an anesthetic given by inhalation. How many grams are in 0.30 mole of cyclopropane? The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 2.2x10^-2 mole of Demerol hydrochlorde?
Solid aluminum acetate is slowly added to 75.0 mL of a 0.0536 M sodium phosphate solution. The concentration of aluminum ion required to just initiate precipitation is
Once the solvent front reaches the top of the chromatographic paper,solvent begins to evaporate from the top edge of the paper, and the remaining solvent continues to move up the paper.
The partial pressure of CO2 inside a bottle of soft drink is 4.0 atm at 25°C. The solubility of CO2 is 0.12 mol/L. When the bottle is opened, the partial pressure drops to 3.0 * 10-4 atm. What is the solubility of CO2 in the open drink? Express yo..
Amongst the following pairs, predict which one would be the best nucleophile and justify your answer.i) CH3OH vs. CH3O-
Cocaine overdose and addiction are major public health problems. One novel treatment involves the administration of high activity mutants of human butyrylcholinesterase (BChE) (i.e. this would be a protein-based ‘drug') that would hydrolyze and d..
To what final volume would 100 mL of 6.0 M NaCl have to be diluted in order to make "physiological saline" (0.54 M NaCl)
When 200ml of 0.11M hydrochloric acid (HCl) is mixed with 800ml of 0.10M methylamine (CH3NH2), write the net ionic reaction that favors products and occurs as the solutions are mixed. Then write the equilibrium reaction that you would use to solve..
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