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Consider the decomposition of calcium carbonate. Assume that ?H° = 177.8 kJ/mol and ?S° = 160.5 J/K·mol for the temperature range.CaCO3(s) -> CaO(s) + CO2(g)
It should shift to the right because the removal of a component causes the equilibrium to shift to the side from which the component was removed.
The oxidation half and the reduction half of a voltaic cell are made of the same electrodes and the same electrolyte. The concentration of electrolyte is different in each compartment.
what is the theorectical yield of disulfure chloride? what mass of the excess reactant reamains when the reaction is completed?
A solution which contains 41.0 g of an unknown molecular compound in 312 g of water freezes at -2.23°C. What is the molar mass of the unknown?
Give the structure for an isomer of compound A that has a melting point that is appreciably different from that of A yet NMR spectra that are almost identical to those of A. Include wedge/dash bonds.
a. For a weak acid with a pKa of 6.0, show how you would calculate the ratio of acid to salt at pH 5. b. Suppose you have just added 100 mL of a solution containing 0.5 mol of acetic acid per liter to 400 mL of 0.5 M NaOH. What is the final pH?
How many kilograms of CaH2 are needed to fill a 147 L tank with compressed H2 gas at 160 atm pressure and 27 degrees C?
the products formed are sodium bromide and hydrogen sulphite. Calculate the mass of sodium bromide produced.
A 6.55mg/L solution of benzoic acid has an absorbance value of 0.621 at 230 nm in a 1.00cm cell. in units of M^-1*cm^-1, what is the molar absorptivity of benzoic acid at 230nm?
How much heat is required to warm 1.20 kg of sand from 26.0 0C to 100.0 0C?
What is the half-life of this reaction assuming first-order kinetics?
For estimating ozon in the air, a certain volume of air is passed through an acidified or neutral KI solution when oxygen is evovled and iodide is oxidized to give iodine
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