how can you determine the mass of liquid bromine (Br2) needed to react completely with a given mass of Mg?
Thursday, September 2nd, 2010 at
3:23 pm
Mg- magnesium
Tagged with: bromine • completely • determine • given • liquid • Mass • needed • react
Filed under: Liquid Magnesium
Like this post? Subscribe to my RSS feed and get loads more!
-you need to find the equation of the rxn
(how many mol(s) of Br2 with how many mol(s) of Mg = how many mol(s) of the product)
-then you take the molar masses of the two and from there i think you can use them as a ratio and just cross multiply
mol(s) of Mg . . . . . . . . . . . . X mol(s)
—————— . . . . .x . . . .—————————–
molar mass of Mg . . . . . . molar mass of Br2
but im not sure whether molar ratios are involved
(sorry im not exactly sure I learned this 5 mo. ago)