Achemist prepares a solution of fluoride (mgf2) by measuring out 0.0191 ųmol of magnesium fluoride into a 400. ml volumetric flask and filling the flask to the mark with water. calculate the concentration in mol/l of the chemist's magnesium fluoride solution.

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?