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Assume that the kinetic energy of a 1600 car moving at 125 is converted entirely into heat. How many calories of heat are released? and What amount of water in liters could be heated from 20.0 to 58.0 by the car's energy? (One calorie raises the temperature of 1 of water by 1.)
Use the polygon in circle method to construct a pie molecular orbital diagram for the benzene dianion c6h6 -2 and explain why, on this basis, you would or would not expect it to be stable.
It phosphoresces at 500 nm. If the ratio of the transition probabilities for stimulated emission for the S* --> S to the T --> S transitions is 1.0 x 10^5, what is the half-life of the phosphorescent state
The density of titanium metal is 4.51 g/cm}^3 at 25 C}. What mass of titanium displaces 69.6 mL of water at 25 ^C?
If a sample containing 2.01 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
Estimate the triple point of water using the clapeyron equation and the boiling and freezing points at 1 bar. Use 1.00 g*cm^-3 for the density of liquid water
Calculate the mass in grams for pure silver sample that loses 3.10 when its temperature drops from 138 to 20.
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations
the equilibrium would shift to the right making more products e. the equilibrium would shift to the left making more products
A tank is first evacuated, and then connected to a 75.0 L cylinder of compressed nitrogen gas. The gas pressure in the cylinder, originally at 15.8 atm, falls to 1.05 atm without a change in temperature. What is the volume of the tank?
What is the pH of a solution which is 0.025M in weak base and 0.035 M in the conjugate weak acid (Ka=7.1 x 10^-6)c
The absence of an alkene C=C IR stretch is definitive evidence that a compound lacks an alkene functional group.
A deep-sea diver uses a gas cylinder with a volume of 10.0 {\rm L} and a content of 51.8g of {\rm O}_{2} and 33.6g of {\rm He}. Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 20^\circ C.
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