Q1b. Rings can be made from 22 carat gold. The ratio of the mass of gold in 22 carat gold compared to 9 carat gold is 22:9. Calculate the mass of gold in a 22
carat gold ring of mass 5.0 g. Use the table above. [2]​

fe 55.85 g/mol and h2o 18.02 g/mol.

> 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.