The equation that describes the change in temperature of a solvent due to a solute is ΔTb = i Kb molality. How much salt would one need to add to 1 kg water to change the boiling temperature by 5°C? Give your answer in moles. Show your work. (Kb = ) for water and i = 2 for NaCl.)

  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-

b. is the answer hoped i        

the answer is 0.8m.

by: nicholas

you did not give any options thus this is the best answer i can give to you with this little information you have given

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