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What is the intermolecular force of ICl4 and SCl6?
a sample of He gas has a volume of 900 mL and a pressure 2.50 atm at 298 K. What is the new pressure when the temperature is changed to 336 K and the volume is decreased to 450 mL?
a gas expand and does P-V work on the surroundings equal to 294 J, at the same time , it absorbs 196J of heat from the surroundings. what is the change in energy of the system
The half-life of tritium (31H) is 12.3 years. If 55.0 mg of tritium is released from a nuclear power plant during the course of a mishap, what mass of the nuclide will remain after 49.2 years?
how much acetone (CH3COCH3) would be needed to obtain 3.35 moles of acetone? the desnity of acetone is 0.851 g/mL.
At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr?
if you have 370 ml of water at 25 degrees Celcius and 130mL of water at 95 degrees C. what is the final temperatue of the mixture?
A 75 kg person drinks 550 g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 20% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
If a sodium hydroxide solution were added to a solution containing lead(II) ions, sodium ions, nickel(II) ions and potassium ions, which ion(s) would remain in the supernatant?
Calculate the molar enthalpy change when mercury is cooled 10 K. The molar heat capacity of mercury is 27.8 J/K*mol
Compute the number of moles - As we know many volatile substances are present in Earth's atmosphere in trace amounts.
A gas sample has an original volume of 760 ml when collected at 720 mm and 25degC. What will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 30degC?
25 mL of 0.10 M HCl is mixed with 25 mL of .43 M NH3. What is the resulting pH?
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