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A 2kg ball is thrown vertically upwards at a velocity of 20 m/s. What is the velocity of the ball when it is 15 meters above the ground? Gravity is 10 m/s. What is the Potential energy of the ball at it's maximum height?
assuming ideality calculate the vapor pressure of a 1.00 molal solution of a nonvolatile solute in water at 50 degrees
A sample of neon gas used in a neon sign occupies a volume of 1.70 L at a pressure of 580 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 781 torr.
Consider equal volumes (say 1 rm L) of a substance in the solid, liquid, and gas phases. Arrange them in order of decreasing mass. If the mass difference between samples is relatively small, rank the items as equivalent.
If 55.0 mL of ethanol ) initially at 8.0C is mixed with 55.0 ml of water (density = 1.0g/mL) initially at 28.6C in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 13.0 L
The concentration of Pb2+ ion in the solution was found to be 1.62×10-2 M. Calculate Ksp for PbCl2.
During a long distance run, increased uptake of fatty acyl COA into muscle mitochondria occurs. which of the following helps to explain this
a 35.0-ml sample of 0.20 m lioh is titrated with 0.25 m hcl. what is the ph of the solution after 23.0 ml of hcl have
56g of metal carbonate containing the unknown metal m was heatedto give the metal oxide and co2 according to
A sample containing 0.35 mol argon gas at a temperature of 13 C and a pressure of 568 torr is heated to 56 C and a pressure of 897 torr. A. What is the original volume of the gas? B. What is the new volume of the argon gas?
In the left compartment there is nitrogen at 1.0 atm and 25°C; in the right compartment there is oxygen at the same temperature and pressure. Calculate the entropy and Gibbs energy of mixing when the partition is removed. Assume that the gases are..
A neon sign is made of glass tubing who's inside diameter is is 2.5cm and whose length is 5.5m. If the sign contains neon at a pressure of 1.78 torr at 35 degrees Celcius, how many grams of neon are in the sign
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