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A cylinder equipped with a movable piston has a volume of 7.25 L under an applied pressure of 4.52 atm. what is the volume of the cylinder if we decrease the applied pressure to 1.21 atm?
What mass of CO2 and H20 would be produced during the combustion analysis of 0.1674 g of the cobalamin?
Find the partial pressure of each produce and the total pressure in the flask at the end of the reaction.
calculate the change in entropy when 25KJ of energy is transferred reversibly and isothermally as heat to a large block of iron at (a) 0C and (b) 100c.
What is the concentration of a solution formed by diluting 25.0 mL of a 3.2 M NaCl solution to 135.0 mL.
Calculate the change in pH when 5.00 mL of .100 M HCL is added to 100 mL of a buffer solution
Explain PH and Biochemistry, Determine the weight in grams of sodium dihydrogen phosphate (M.W.138.01) and disodium hydrogen phosphate (M.W 141.98) needed to prepare 1L of a standard buffer at pH 7.00, with a total phosphate concentration of 0.100..
calculate the approximate amount of sodium thiosulfate pentahydrate needed to prepare 500mL
Sulfur in the air reacting with silver flatware to produce tarnish, or silver sulfide. What is the limiting and excess reagents?
it is observed that a volume of 29.15 mL of KOH was neede to complete the process of titration. Determine what is the concentration of this unknown HCl solution?
Synthesized a new compound one which has never beenprepared. How would you determine its mp? What precautions could take to insure that it is as accurate as possible?
What volume of O2 at 988 mm Hg and 33 degrees celcius is required to synthesize 19.5 moles of NO2.
Tell what type of chemical reaction is represented by the following chemical equation.
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