¿POR QUÉ SE LE LLAMA INDICADOR UNIVERSAL AL PAPEL p H? ¿DE QUÉ ESTÁN HECHOS LOS ELECTRODOS DEL POTENCIÓMETRO?
SI LA SALIVA HUMANA TIENE NORMALMENTEUN p H DE 7.4 (CASI NEUTRO) ¿QUÉ SUCEDE
CUANDO DISMINUYE, ES DECIR CUANDO LA SALIVA SE VUELVE ÁCIDA?

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.