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Construct a table with the headings q, w, delta U, and delta H. for each of the subsequent processes, deduce whether each of the quantities listed is positive, negative or zero. a) Freezing of acetone at 1atm b) irreversible isothermal expansion of an ideal gas c) adiabatic compression of an ideal gas d) irreversible adiabatic expansion of a gas beside an external pressure e) reversible isothermal compression of an ideal gas
For an acid-base reaction, what is the reacting species, that is, the ion or molecule that appears in the chemical equation, in the following acids?
If a student starts with 0.545 g of pure 4-aminobenzoic acid and ends up with 0.488 g of benzocaine, what are their theoretical and percent yields
How many orbitals in an atom can have each of the following designations? (a) 3d (b) 4f (c) 3p (d) n = 3
Dissolve the crude product in the minimum amount of boiling solvent to keep the solution of the product at its saturation point and then allow to cool so pure crystals will form.
.8 grams of sulfur is combusted to form SO2. All of the heat evolved is used to raise the temperature of 100.0grams of water by 17.8 K. Specific heat of water is 4.813J/gK. Compute the heat of combustion of 1 mol of sulfur.
The vapor pressure of the pure liquids at 25°C are 451 torr for pentane and 321 torr for cyclopentane. Assume that the solution is an ideal solution.
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures, including hydrogen atoms, for the formula.
Sodium ethoxide, NaOCH2CH3, contains both covalent and ionic bonds,
Neglect overpotential and determine the minimum potential required to electrolyze molten CrCl3. answer options: 0.80, 1.1, 1.4, 1.7, 2.0, 2.3V How grams of Cr would be deposited and how many liters of Cl2 gas would be produced at 127 oC and 3.59 a..
1. why should activated carbon be used during a recrystallization. 2. if a little activated charcoal does a good job removing impurities in a recrystallization, why not use a large quantity
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84
The products of the fusion are carbon-13 and a proton. a) Write a nuclear reaction for this process. b) How much energy is released when 1.00 g of B-10 is fused with alpha particles?
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