Abituminous coal sample had a mass of 20.0 grams after complete
drying. the coal's sulfur was chemically converted to the precipitate barium sulfate, baso4. if the mass of the dry precipitate is 2.35 grams,
what was the percent sulfur in the dry coal? how did you find your answer?

if you mean hydrogen and oxygen then water is the product

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.