Copper (ii) bromide is used as a wood preservative. What mass of CuBr2 is needed to prepare 750. 0 ml of a 1. 25 m solution?

Naoh + hbr -> nabr (salt) + h2o ca (oh)2 + 2hbr - - - > ca (br)2 + 2h2o

Answer the molar mass of magnesium is 24.305g/mol.

Remember that rust prevented by placing a sacrificial electrode in electrical contact with the iron. the sacrificial electrode must be composed of a metal that  oxidizes  more easily than iron (that is, it must be below iron in table 18.1).