What is the ph of a buffer that results when 0. 50 mole of h3po4 is mixed with 0. 25 mole of naoh and diluted with water to 1. 00 l?.

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together