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Choose all of the processes from below which describe changes which are independent of the path by which the change occurs.
a) the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Colorado
b) the number of rotations the earth undergoes over a specified period of time
c) the energy evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)
d) the energy released by the combustion of a gallon of gasoline
e) the odometer mileage increase observed by a traveller travelling from Louisiana to Canada
f) the change in the score of a football game as the game progresses
g) the potential energy gained by a satellite as it is shot into a specific orbit
a solution of 8.32g of paba in 150g of chloroform boiled at 62.62C. what is the molecular mass of paba?
For each of the following species, draw its Lewis-dot structure. If the species exhibits resonance, draw all the resonance hybrids. For each species, tell its shape, bond angles, hybridization of the central atom, and whether it is polar or nonpola..
Given that benzaldehyde is a meta- director, draw all three resonance structures for the carbocation intermediate that results from STEP 2 in the electrophilic aromatic substitution reaction when benzaldehyde reacts
Calculate the empirical formula and then determine the molecular formula of this compound using the given molar mass. b) Draw three lewis structures for molecule that satisfies the octet rule for each atom.
required to heat 10.0 grams of silver (Ag) from 112 degrees Celsius to 275 degrees Celsius
Considering that Xenon has eight valence electrons, how can something like XeF4 exist? Explain your answer by illustrating what occurs.
a sample of sodium hydrogencarbonate, NaHCO3 is contaminated with 5-10% NaCl. How should i carry out an experiment to determine the percentage purity of NaHCO3 ?
C12H22O11(aq) + 3 O2(g) 2 H3C6H5O7(aq) + 3 H2O(l) Determine the mass of citric acid produced when 4.60 mol C12H22O11 is used.
When 5.00 × 1022 molecules of ammonia react with 4.00 × 1022 molecules of oxygen, how many grams of nitrogen gas are produced? 4NH3(g) + 3O2(g) → 2N2(g) + 6H2O(g)
A first-order reaction has a rate constant of 0.33 y-1. How many years does it take for the concentration of the reactant to decrease from 0.13 M to 0.088 M?
A solution of 16.1 g of an unknown solute in 600 grams of water boils at 100.28 C. What is the molar mass of the solute
What volume of O2 at 684mmHg and 37degree celsius is required to synthesize 22.0 mole of NO2.
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