What is Delta. S for the reaction N2 (g) + O2 (g) Right arrow. 2NO? Use Delta. G = 173.3 kJ at 303.0 K and Delta. H = 180.7 kJ. Use Delta. G = Delta. H - TDelta. S.

7.4 J/K

7.4 kJ/K

24.42 kJ/K

24.42 J/K

Why are the transition medals section ten columns wide

A chemist prepares 1.0 L of a buffer solution by preparing an aqueous solution containing 1.00 mol of H2PO4-, then adding 0.27 moles of KOH to convert the acid into its conjugate base. What is the final pH of the solution? The Ka for H2PO4 - is 6.

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If the heat involved in a chemical reaction has a negative sign, A. heat is lost to the surroundings. B. heat is gained from the surroundings. C. no heat is exchanged in the process.

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Determine the [oh-] concentration of a 0.741 m koh solution at 25°c.

In the lab, students decomposed a sample of calcium carbonate by heating it over a Bunsen burner and collected carbon dioxide according to the following equation: CaCO3 (s) CaO (s) CO2 (g) (a) How many mL of carbon dioxide gas were generated by the

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Which answer best describes an alloy