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A fixed amount of gas at 25.0 °C occupies a volume of 8.66 L when the pressure is 629 torr. Use Charles's law to calculate the volume (L) the gas will occupy when the temperature is increased to 155 °C while maintaining the pressure at 629 torr.
The labeling of acetone with 18O is catalyzed by both acid and base. Show Mechanisms for both reactions.
A 25.0-mL sample of 0.35 M HCOOH is titrated with 0.20 M KOH. What is the pH of the solution after 25.0 mL of KOH has been added to the acid? Ka = 1.77 × 10-4
When an ant bites you, the reason it stings is because of an injection of formic acid. What is the pH when 50.0 mL of 0.1480 M formic acid (HCOOH) is titrated with 40.2 mL of 0.1841 M NaOH? PKa formic acid = 3.745.
What must the oxygen content (in percent by volume) be when the total pressure exerted on the diver is 4.0 atm?
Match the following properties of liquids to what they indicate about the relative strength of the intermolecular forces in that liquid. Strong intermolecular forces: Weak intermolecular forces
What would be the speed of the following particles if they had the same wavelength as a photon of red light (? = 750.0 nm)
One reaction gives the ether in good yield, and the other undergoes an elimination reaction. Which reaction gives the ether? What is the product of the elimination reaction?
An empty gasoline can with dimensions 15 cm by 40 cm by 12.5 cm is attached to a vacuum pump and evacuated. if the atmospheric pressure is 14.7 lb/in^2.
Calculate the freezing point and normal boiling point of the following solution: 25.0 mL of ethanol, C2H5OH (d=0.780 g/mL), in 735 g of water (d=1.00 g/cm3)
Calculate the Calorimeter Constant if 25 g of water at 60C was added to 25 g of water at 25C with a resulting temperature of 35C?
Which condition characterizes the stoichiometric point of any acid/base titration? a) equivalent molar amounts of acid and base have reacted. b) The pH is exactly 7.0 c) The indicator changes from pink to colorless
Semi-Empirical Expression for a Dilute Real Solution, Starting with the definition of osmotic pressure
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