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A tire holds air (assume it's all N2) at a pressure of 3 atm, and in one week the pressue drops by 1% because of inevitable leakage at the rim, when the temperature is 300 K. Calculate the area of the hole. [Hint: because the pressure change is small, you can assume the pressure to be 3 atm, even thought it DOES drop slightly over time] How many molecules have escaped the tire during the week?
the absolute temperature of the gas at which 3.33 10-3 mol occupies 257 mL at 722 torr K (c) the pressure, in atmospheres, if 0.0471 mol occupies 428 mL at 118°C atm (d) the quantity of gas, in moles, if 66.2 L at 50.°C has a pressure of 11.38 kPa..
The unit cell for tin has tetragonal symmetry, with a and b lattice parameters of 0.583 and 0.318 nm, respectively. If its density, atomic weight, and atomic radius are 7.30 g/cm3, 118.69 g/mol, and 0.151 nm, respectively, compute the atomic packi..
The resulting mixture exerts a pressure of 731 mmHg at 83°C. (a) What is the partial pressure of each gas in the container (in mmHg). (b) What is the mass of the original sample (in g)
Electron configurations are a shorthand form of an orbital diagram, describing which orbitals are occupied for a given element. For example, 1s^22s^22p^1 is the electron configuration of boron.
Suggest a reasonable synthetic strategy for the synthesis of 3,5-dinitrobenzyl alcohol from benzaldehyde.
What minor product(s) might be expected by this method. Give the detailed reaction mechanism leading to the final product (major). What simple chemical test(s) would help establish that you had, in fact, made the desired alkene product
Combustion occurs when a substance combines with oxygen to produce light and heat.
when copper(II) hydroxide is heated it dehydrates, losing one molecule of water and forming copper(II) oxide.
Bismuth oxide reacts with carbon to form bismuth metal: Bi2O3(s) + 3C(s) --> 2Bi(s) + 3CO(g)
As gas expands from 1.00 L to 2.50 L against constant pressure of 820 torr. Calculate the change in internal energy for the gas, if 120 J of heat is transferred to the gas during the expansion.
what is the steric number of nitrogen trifluoride, carbon tetrabromide, phosphorus pentiodide, sulfur hexachloride, and bromine trifluoride.
Construct a three-step synthesis of 3-bromocyclopentene from cyclopentane. Drag the appropriate items into the bins. Note that each bin should hold only one item, and not all reagents and structures will be used.
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