5. How many moles of NaBr will be formed if I start with 65.5 grams of sodium hydroxide and an excess of calcium bromide?​

i'm assuming that the correct answer is indeed the first one/ "a"..

> 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.