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What is the change in internal energy (in J) of a system that absorbs 6.03 kJ of heat from its surroundings and has 4.70 kcal of work done on it? 1 kcal = 4.184 kJ
aluminum and oxygen react to form aluminum oxide by the equationals o2gnbspnbsp regnbspnbsp al2o3sin a certain
Solid silicon and solid magnesium chloride form when silicon tetrachloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation. Include all of the appropriate notations.
Describe the characteristic IR absorption frequencies in cm -1 that would allow you to distinguish between the following pair of compounds.
Determine the molar mass of the compound if boiling point constant for CCl 4 =4.95 K · kg/mol.?
what are the practical properties of acetone and detailed explanation of its properties.
what are the technique that we encounter in the experiment of preparation of standard solutions and standardization of
What is the enthalpy of combustion (in kJ/mol) for acetone (CH3COCH3) under standard conditions (water is produced as a liquid)? Use the appendix in your textbook, do not enter units, and answer with 5 significant digits.
For a first-order reaction, the half-life is constant. It depends only on the rate constant and not on the reactant concentration. It is expressed as: t1/2 0.693/k. For a second order reation, the half-life depends on the rate constant and the con..
A certain plant material is known to contain mainly trimyristin and tripalmitin in approximately equal amounts. Tripalmitin, the structure of which you should look up in a reference source,
Write reaction equations to explain how your acetic acid/sodium acetate buffer reacts with an acid and reacts with a base.
One mole of N2, one mole of O2, and 0.5 mol of H2 are at 25 oC and 1 atm. The final total pressure of the mixture is 1 atm. Calculate delta_S on forming the mixture.
Determine whether each of the given amounts of solid will completely dissolve in the given amount of water at the indicated temperature.
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