How many grams of a stock solution that is 87.0 percent h2so4 by mass would be needed to make 200 grams of a 35.5 percent by mass solution? show all of the work needed to solve this problem

> 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.