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(a) For an electron mobility of 500 cm2/N·s. calculate the time between collisions. (Ta ke mil = moin these calculations.)
(b) For an electric fi eld 100 V/cm. calculate the distance an electron travels by drift between collisions.
How much work (in J) must be done to inflate the balloon when atmospheric pressure is 767 torr?
a student weighs 0.2254g of sodium chloride for chloridedetermination. calculate the millimoles of silver nitrate
If the barometeric pressure was 0.98 atm when the mercury level in an open-end manometer connected to a flask of gas was 177 mmHg higher on the side open to the atmosphere than on the flask side
if you have 380.00 ml of water at 25.00 degrees celcius.and add 130 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
Explain what is better for cleaning when a hard water is used a soap or a detergent and why
When power was turned off to a 30.0 gal. water heater, the temperature of the water dropped from 75.0°C to 22.5°C. How much heat was lost to the surroundings? (1 gal = 3.785 L) Assume the density of water is 1.00 g/mL.
Calculate the standard molar enthalpy for the complete combustion of liquid ethanol (C2H5OH) using the standard enthalpies of formation of the reactants and the products
The Haber process is an important reaction for the fixation of nitrogen, nitrogen is converted into ammonia, an important component in the production fertilizers. N2(g) + 3H2 = 2NH3(g) + 22,000cal
Explain how can you synthesize phenylpentane starting with a benzene ring and one other compound containing no more than three carbon atoms? Is it probable to make phenylpropane and then add an ethyl group to the chain
A solution is prepared by condensing 5.01L of a gas, measured at 27.0 degrees celcius and 769 mmHg pressure, into 72.1g of benzene. Calculate the freezing point of this solution.
calculate the molar mass of a vapor that has a density of 1.88 gl at 25.2 oc and 710.
Several minerals are metal carbonates as well as siderite is a mineral that is largely iron(ll) carbonate. State a balanced equation for the reaction of siderite with nitric acid.
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