Which of these solutes raises the boiling point of water the most? ionic lithium chloride (licl) ionic sodium chloride (nacl) molecular sucrose (c12h22o11) ionic sodium phosphate (na3po4) ionic magnesium bromide (mgbr2)

ionic sodium phosphate

Explanation:

The formula used:

= change in boiling point

i = Van'T Hoff factor  

= boiling point constant

m = molality

1.  For

i= 2 as it is ionic and dissociate to give 2 ions.

2. For

i= 2 as it is ionic and dissociate to give 2 ions.

3. For

, i= 1 as it is a non electrolyte and does not dissociate.

4. For

, i= 4 as it is ionic and dissociate to give 4 ions.

5.  For

, i= 3 as it is ionic and dissociate to give 3 ions.

Thus as vant hoff factor is highest for , the boiling point will be raised most.

"the periodic table is arranged in order of atomic number."

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-