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a sample of gas occupies 1.40 X 10 cubed mL at 25 degrees celcius and 760 mmHg. what volume will it occupy at the same temperature and 380 mmHg? which gas law is being used.
If the pressure exerted by ozone, O3, 3.0x10-3 atm and the temperature is 247 K , how many ozone molecules are in a liter.
A piston has an external pressure of 14.0 torr. How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.530 liters.
Addition of HBr to 1-phenylpropene yield only (1-bromopropyl)benzene. Propose a mechanism for the reaction and explain using resonance structures why none of the other regioisomer is produced?
Assume that the kinetic energy of a 1500kg car moving at 95 km/h can be converted entirely into heat. What amount of water could be heated from 20 C to 50 C by the car's energy?
The manometer shown below measures the pressure of the water in the tank. Using variables for the densities (no values given), find the gage pressure at point A.
Determine the partial pressure of each gas in a mixture of gases using Dalton's law of partial pressures
If the average speed of an oxygen molecule is 4.05multiplied by 104 cm/s at 25°C, what is the average speed of a CO2 molecule at the same temperature?
BNCT relies on the initial targeting of tumor cells by an appropriate chemical compound tagged with 10 5 B , which preferentially concentrates in tumor cells.
A 9.0×10-2 M solution of a monoprotic acid has a percent dissociation of 0.60%. Determine the acid ionization constant Ka for the acid.
The isotope 172Ta undergoes decay by positron emission. After 2 hours , 1/6 of the initial amount of 172Ta remains undecayed. The half- life of the isotope is
What mass of carbon monoxide in grams is present in a room measuring 8.5 12.0 18.4 ft ?
The initial concentration of some weak acid, HA, in an aqueous solution is 0.2150 M, at equilibrium the concentration of HA becomes 0.0955 mol/L.
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